chevy avalanche transmission upgrade chevy avalanche transmission upgrade

Get Your Car Fixed. Another difference is that the 4L80-E is a 4-speed, and the 6L80 is a 6-speed. SELECT STORE. The one-piece case 4L60E was produced from 1993 through 1997. The image below shows the difference between the Tru Cool 40k and factory external cooler. We solved that problem working with COMP Cams to create a performance engine that is compatible with all of your factory equipment, street-friendly, and will pass smog in all 50 states! It is ideal if you're replacing a TH350 or Powerglide trans because a TH200-4R will practically install itself into a TH350/Powerglide-equipped car. Squeeze Bottle, JEGS 603024 - 4L65E Performance Transmission for 2007-2008 Chevy 4WD Truck, JEGS 603234 - 4L70E Performance Transmission for Late Model GM LS 4WD Truck, TCI 371016 - StreetFighter Transmission GM 2000-2006 4L60E, JEGS 603052 - 4L80E Performance Transmission for 1991-1996 Chevy 4WD Truck, JEGS 60325 - 4L80E Performance Transmission for 1991-1996 Chevy 2WD Truck, TCI 311600 - Maximizer 4x4 Transmission GM TH350, Chevrolet Performance 19366637 - 6L80-E SuperMatic Six-Speed Automatic Transmission, JEGS 603042 - 4R75W Performance Transmission for Ford 2005-2008 4WD Truck, TCI 371402 - Maximizer 4x4 Transmission 1984-93 GM TH700R4 (30-spline), TCI 371400 - Maximizer 4x4 Transmission 1984-93 GM TH700R4 (30-spline), JEGS 60300 - TH350 Performance Transmission 2WD, TCI 311090 - StreetFighter Transmission Chevy 1969-1979 GM TH350, Hughes Performance GM22FUEL - Fuel Miser Torque Converter 4L60E/4L60E/4L65E (TH700R4) 4-Speed Overdrive, Hughes Performance GM22ELTOW - Tow Master Torque Converter 1999-Newer GM 4L60E, ATK Engines 1297-MB - Remanufactured GM 4L60E AWD/4WD Automatic Transmission, JEGS 60467 - Torque Converter for 4L60E, 4L65E, 4L75E GM LS-Based Transmissions, JEGS 5300 - High-Performance LS Crate Engine [GM LS 5.3L LM7 460 HP / 425 ft.-lbs. The Avalanche appeared on the Scene for the 2002 model year - there were no 2001's. The very first Avalanches suffered from a transmission problem called a Shell. It's not the easiest swap to do, and a 4L60E can handle a lot of power on its own. 1999 GMC Yukon K2500 5.7L 4X4 Because of this, the Tru Cool 40k is the best transmission cooler upgrade for your 1500 or 2500hd (6.0 or 6.2 gas engine) Silverado or Sierra. All pickups, Suburbans and Avalanche with the 6.0 used the 4L80. Chevy transmission won't shift, stuck in 1st gear or limp mode - Speedometer may display zero at all times. This is due to the constant shutter that the converter sees when DOD is constantly cycling on and off. My truck only had a 36,000 mile power train warranty. Dealer wanted to replace the transmission, but GM insisted that they rebuild/repair it - which they finished after about 10 days. Transmission, automatic. By clicking Accept, you consent to the use of ALL the cookies. While many GM trucks come factory with an external cooler, it is not big enough to provide the cooling needed . Also, there is no vacuum modulator used on the TH700/TH200, so you can plug the old line that ran from the base of the carb or intake manifold to the transmission. The conversion to older vehicles will require the use of a transmission controller, crankshaft spacer, special cross-member, driveshaft changes, and other modifications (these parts are not included with the transmission). Free shipping for many products! L], JEGS 81747 - 24-Volt Cordless Impact Wrench [1/2 in. Learn About Sonnax Heavy Duty & High Performance, See All Heavy Duty & High Performance Upgrades. This cookie is set by GDPR Cookie Consent plugin. Upon removing the transmission to change the filter, or doing any service to the transmission requiring a refill of the fluid, vehicle not wanting to move or engage the transmission in any range. 2006 Holden/Chevrolet WM Statesman/Caprice 2001-2003 GMC Sierra 1500HD 6.0L 4X4 Updated AC Delco pump cover (stator support), body (bell housing), and vanes with hardened rings, Upgraded line boost valve and slide spring, Performance-tuned solenoid valve body with new ACDelco transmission control module. The high performance steels and clutches included with the HP upgrade are highly recommended for modified vehicles or drag racing applications. Click HERE for a list of rules and exclusions. National Powertrain Remanufactured Automatic Transmission Assembly T260061. freq may vary. Depending on what vehicle you have, your 6l80 might have different transmission pans. Mega Monster Transmissions. Gains of 50-60 Horsepower and Torque Gains of 70-80 lb-ft. Maintains speed and higher gears when climbing hills. Aux Transmission Cooler Upgrade & Relocation. 1999 Chevrolet Suburban K2500 5.7L 4X4 When dropping the transmission pan to perform a standard drain and fill transmission fluid change, you can expect to replace around anywhere from 4-6 quarts of fluid assuming the stock transmission pan is being used. 1999-2000 Chevrolet K3500 5.7L 4X4 Transmission randomly pops out of Park with no one in the vehicle. Part # T260061. Home Delivery. The 6l80 was the. We arent the biggest fan of this for obvious reasons, and neither are many other owners of 6l80e equipped vehicles. 1999 Chevrolet Tahoe K2500 6.5L 4X4 The 3-4 clutch pack is upgraded from 6 to 7 clutches/frictions to increase durability and torque capacity. Im an active writer on this blog myself, as well as a novice car mechanic. However, most of these problems dont seem to have any effect on the transmission. The 4L80-E and the 6L80 have some differences. This is a strong shift kit that will deliver impressive performance. Irregular shifting: sometimes a throttle position sensor or input/output speed sensor fails on the transmission which causes it to develop erratic shifting. Provides for extended drain intervals. 4L60-E. 2001-2006 Chevrolet Silverado 2500HD 6.6L 4X4 Starting in the early '80s, GM began installing four-speed automatic overdrive transmissions to improve gas mileage. Designed using state-of-the-art technology and with customers in. When performing an overhaul, remove the rod and closely inspect for wear or damage. 4L60E Transmission for 2001 & Up GM LS Engines 4WD Truck. A larger 6.2-liter V8 is the optional 420 horsepower, 460 pound-feet of torque engine. GMC & Chevy Van 1994-2013; Yukon 1993-2013; This rebuild kit fits the following years: 1993, 1994, 1995, . 2001-2006 GMC Yukon XL 2500 8.1L 4X4 However, there are some things that you should look out for: The 6L80 is another transmission that does have a small list of well-documented problems. VIN : 3GNVKEE02AG286623. 1999-2000 GMC K2500 5.7L 4X4 2006 Holden VE Commodore/2008 Pontiac G8 Find a high quality auto repair shop or dealer near you . On this blog, weve already done extensive research on several Chevrolets and their transmissions. Sales & Info: 330-434-5216 Parts: 330-434-0104 This guide can tell you what's involved withand needed forswapping any trans into your Bow Tie. Its case length and mounting pad are identical, and it features the same input/output spline count as the T5. Check out these handy build guides to get maximum results out of your rebuild! The last problem is caused by failing O-rings which need to be replaced. LS Truck, Heavy Duty,Performance, Safety Upgrade, Urethane/Steel, Black powdercoat, Pair. You are now signed up to receive JEGS Deals with text alerts! Excellent replacement for your worn out or faulty part Designed to restore original performance and reliability. Thank you! misha1957 Member Posts: 6. 2011-2017 Chevrolet Caprice PPV One common 6l80 issue due to design flaws include premature clutch failure. Overall Length], JEGS 80006 - 2-Ton Low-Profile Aluminum Floor Jack, JEGS 79012 - Transmission Jack Low Profile 1000 lb Capacity, JEGS 81154 - Lo Boy Creeper 250 lb. Filtran Brand Transmission Filter There is much custom fabrication work involved in a six-speed swap as well as some additional high-performance hardware that you'll need, including purchasing or fabricating a custom mounting bracket and modifying the stock clutch pedal for the hydraulic-clutch master cylinder, modifying or fabricating a complete transmission crossmember, relocating the shifter hole in the floor of the car, shortening the driveshaft and possibly changing its yoke, and even installing a small-diameter starter and having custom headers built for clearance. The GM 4L60/E series are great transmissions used for decades in performance vehicles, but their reputation has somewhat suffered because old-school mods never significantly improved durability. Drive], JEGS M200DB - Torque Wrench 1/2" Square Drive 10 to 150 ft/lbs, JEGS 28084 - Blue Bolt Locker Medium Strength, JEGS 80080 - Round Magnetic Parts Tray [5 1/2 in. But most aftermarket performance transmissions are valved to alleviate such problems, and running a supplemental trans oil cooler is always a good idea. October 2008. The TH700 uses a unique torque converter that will bolt right up to a TH350's flexplate. LBRST Headlight Assembly For Chevrolet Avalanche 1500/2500 2002-2006 Black Housing Amber Reflector Clear lens Driver and Passenger Side Headlamp (with Body Cladding Model only) 4.9 (36) $11099. 1999-2000 Chevrolet K2500 6.5L 4X4 Aerosol Can], JEGS 72327 - Performance Hand Sanitizer [2 oz. If we talk about the clutch, you get expanded capacity1-2-3-4, 4-5-6, 2=6 and3-5 low/reverse clutch packs with latest generation friction and steel. Burnout after burnout . r-t_12864. -Reverse clutch problems. You lost your second or reverse gear. Problems with shifting into 2nd gear with a possible check-engine light. 2008-2013 Chevrolet Avalanche. All applicable sales/use tax will be applied during checkout in addition to the requested price. Thank you guys for supplying awesome quality performance parts. It was also adopted in Rolls Royce and Bentley vehicles. Built for performance: the McLeod by Raybestos Powertrain 4L60E performance transmission rebuild kit utilizes Stage-1 red friction clutch plate material to deliver the competitive power and performance you need on the street, on the track and off-road. Came packaged good and Performs better!! 1999-2002 Chevrolet K3500HD 7.4L 4X4 Find The Best Prices On 6l80 Transmission Pans. I've got a 2004 Chevy avalanche with 195,000. miles on it. Engineered to Dominate, the 4L65E 4WD Mega Monster transmission is tough enough to withstand the rigors of even the toughest heavy duty trucks, used for towing/hauling or off-roading. 4l60e to 4l80e swap kit. Also, the TH200 uses a torque converter with the smaller TH350 bolt circle. EBC Brakes; Flowmaster; K&N; Magnaflow; . 2002-2006 Chevrolet Avalanche 2500 8.1L 4X4 Pump Gears This GM 4L60-E transmission offers superior performance for 4x4 trucks. Told my avalanche group all about it. If you have a deeper aftermarket transmission pan on your 6l80e, then this quart estimate will likely be more and require you to check fluid levels as you fill and run the transmission through the gears. When people hear used Chevy trucks, they probably think of a Silverado from the 90s that's been weathered and worn-down from years of hard work.The scuffs and scratches in the bed and on the tailgate a testament to the trucks fortitude. Functional cookies help to perform certain functionalities like sharing the content of the website on social media platforms, collect feedbacks, and other third-party features. Available touch-screen navigation system. Running the 700-R4/4L60E family of transmissions at extreme power levels demands innovative parts designed not only to work better, but to work better together. First, a quick answer: The 2002 2006 Chevy Avalanche has a 4-speed 4L60-E automatic transmission and a 4-speed 4L80-e automatic transmission. PRICE: 649.99. $1,000 minimum purchase. Free Shipping On Powertrain Parts! Swapping from the 4L60E to the 4L80E is not difficult to do in vehicles that were equipped with both transmissions. These chemicals are found in vehicles, vehicle parts and accessories, both new and as replacements. Repairs differ depending on the type of cluster and the year range. This issue can obviously cause a number of serious drivability issues. Capacity], Permatex 25616 - Fast Orange Xtreme Professional Grade Hand Cleaner 15fl oz Rocker Cap Bottle, Mechanix Wear LFF-75-010 - Durahide FastFit Gloves Brown Large, JEGS 81340 - Bucket Top Parts Washer Fits Most Standard 5-Gallon Plastic Buckets, JEGS 72302 - Industrial Strength Cleaner and Degreaser [1 Gallon], JEGS 80170 - Workbench Utility Mat [24 in. The 2005 Chevrolet Avalanche has 13 problems reported for transmission failure. Many times, people will tune out the DOD and reduce the converter lockup in certain gears while improving pressures to prevent the TCC from wearing out. W x 31 1/2 in. All of our transmissions are fully remanufactured and are held to the highest and strictest industry standards. JEGS will validate the price match before the items are shipped. Yes, in theory, but it's not recommended. and transmission will set me back around 10,000. dollars and I hope to try to get another 10 to 15. The Jegs 555-603025 transmission is warranted for 1-year from date of purchase regardless of installer. The Best Performance Parts in One Complete Kit, Solve Shell Problems with BRAINS, not Just Brawn. A Completely Remanufactured and Improved Torque Converter is tested for leaks lock-up concentricity and balance. Available are a performance Mega package and a SS variant for those needing additional horsepower . But by 2011, the year prior to GM's decision to discontinue the vehicle, Chevy Avalanche sales dwindled to a measly 20,088 . Chevy Avalanche 2022 Engine Performance. According to repairpal.com, Chevy Avalanches end up at the garage for an unexpected visit about 0.46 times per year. Accessories, TCI 371416 - GM Maximizer 4x4 Transmission, TCI 371430 - GM Maximizer 4x4 Transmission, Please click here to download the instructions PDF file, BMR Suspension TCC024H - Transmission Conversion Crossmember 1984-92 Chevy Camaro & Pontiac Firebird, BMR Suspension TCC030H - Modular Transmission Conversion Kit 1967-69 Chevy Camaro & Pontiac Firebird, FAST 30282-KIT - EZ-TCU Transmission Controller GM Overdrive Up-To 2009, Hooker Headers 12625 - Blackheart LS Engine Swap Transmission Crossmember, Chevrolet Performance 19302405 - SuperMatic Transmission Controller Systems for 4L60-E with LS Engines, TCI 302820 - EZ-TCU Control Unit 2009-Down GM 4L60E, 4L65E, 4L80E, 4L85E Transmissions, JEGS 60129 - Flywheel and Flexplate Turning Tool, JEGS 81432 - Transmission Teardown Work Station [1/2-Ton Capacity], JEGS 28071 - Quick Shift Automatic Transmission Fluid [1-gallon], Lisle Tools 23400 - Transmission And Transaxle Plug Set, JEGS 60308 - Transmission and Transaxle Stepped Plug Set, JEGS 22010 - Transmission Guide Dowels 3" Long with Tapered Shape & Slotted Head, JEGS 72312 - Brake and Parts Cleaner [14 oz. This tailshaft housing puts the mounting pad almost in line with the original TH400 pad and usually requires only slight elongation of the mounting holes to fit. Sonnax HD Forward Clutch Hub 1999-2002 GMC K3500HD 7.4L 4X4 Black, JEGS 65014 - Protective Mechanics Seat Cover [52 in. Below we first outline all the generations of the Avalanche and explain which transmissions have been used with each generation. Transmission gear shift not moving to Park. The transmission fluid chart below shows that even a 25 degree drop from 200 will add another 40,000 miles of use out of our transmission. With the cars however, things are far easier with the drain plug and exhaust out of the way. Vehicle not moving into, not releasing or popping out of the park position. Some parts are not legal for use in California or other states with similar laws / regulations. Here are the main parts that you are going to need in order to make your own 4L60E to 4L80E swap kit. One part is a completely new aftermarket T56 transmission assembly from National Drivetrain. 4L80E 1999-2009 4X4 TRANSMISSION 5.7L 6.0L 6.5L 7.4L 8.1L. The most common simple DIY 6l80e upgrades that can be done with simple hand tools in your driveway without removing the transmission to tear apart are . The new Richmond six-speed trans comes with its own six-speed shifter assembly that will require elongation of the shifter hole in the floor. Used. OE quality at an affordable price Direct replacement. Sonnax HD Forward Clutch Hub Fits all input carrier styles. The Jegs 555-603025 transmission will only work in a '00 Silverado if it has a 13-pin connector. From the options with Chevy Avalanche mods to the distinct chassis setup, these big trucks are worth bragging about. Privacy Policy. Just use the code "SHIPFORFREE" when you check out. Options: AT, 5.3L, 4x4 Change Options. General discussions on the 2007-2013 2nd generation Chevy Avalanche on the GMT 900 platform. When it comes to upgrading your 6l80e, besides adding better internals and hard parts, there are a few simple upgrades that you can make to keep transmission temps down. 2007-2015 Cadillac Escalade The Jegs 555-603025 transmission will only work in an '03 Silverado if it has a 13-pin connector. What this means to you is the fact you are getting a quality product that meets or exceeds the OEM standards, not just a part that is taken apart and patched. Because of its ability to be used on a number of different platforms, the 6l80e transmission was found in a many GM vehicles from model years 2006 2021 ranging from sports cars to full size pick up trucks. In this case were talking about a broken drive shell which will need to be replaced. This was a beefed up version of the 4L80 and it was used in the Avalanche and Suburban with the 8.1 engine only where the Allison was too big to fit. One such swap involves installing a Richmond four-, five-, or even six-speed manual transmission. The cookie is used to store the user consent for the cookies in the category "Performance". Our experts may be able to assist you with the proper installation. IF a 6l80 is ever taken apart for a rebuild, its generally best practice to consider replacing the drum with a stronger aftermarket unit. Youll need new pistons and a clutch pack to replace this. SKU # 327358. Rental cars, loss of work, any labor costs, removal/reinstall fees, towing costs, inspection fees and any other incidental costs or damages which may be associated with product failure. Aerosol Can], JEGS W4034 - Funnel [18 in. Warranty: 3-Year Warranty. x 60 in. The next easy swap involves replacing either a PG or TH350 with the bigger, stronger, and heavier TH400. : In this tutorial you'll learn how to repair a sticky, stuck, jumpy or dead GM speedometer, tachometer, fuel gauge, oil pressure gauge, volt meter, water temperature gauge and . Most high performance LS 5.3 LM7 long block engines require a tune, injectors, and are not smog compliant. first fully electronically controlled heavy duty transmission designed by GM with unique features including direct clutch to clutch shifting and the use of an advanced computer controller built directly into the transmissions the valve body. Sonnax HD Forward Clutch Hub for Silverado, Tahoe, Yukon, Suburban, Sierra, H2, Avalanche and Other 2003, 2004, 2005 and 2006 Chevrolet GM Vehicles. Most aftermarket deep 6l80 pans are made from a heavy duty cast aluminum, and typically provide an extra 2 quarts of fluid capacity or retain the factory fluid levels but provide added strength. Truth is, the TH200-4R is just as capable and actually easier to swap in than a TH700-R4. 132 N. Howard St, Akron, OH 44308 This is a Chevrolet Avalanche truck, with a swapped out 6.2-liter engine that takes it to a whole new level. Well be in touch soon. Case Material: Aluminum . YOUR PRODUCTS EFFING RULE!!! Our Process: Texas Speed & Performance DOD / AFM Delete Kit for 5.3/6.0/6.2 Engines. Before any upgrades, addons, and/or core charges. Among the Chevy Avalanche years to avoid is the Chevy Avalanche from 2002 through 2008, then from 2009 to 2010. It does require that the clutch be converted to a hydraulic pull-off design using a hydraulic master cylinder and remote fluid reservoir. As a general rule of thumb, Chevrolet advises you to change the transmission fluid of your Avalanche every 45,000 miles. The plucking rod actuator assembly GM part number 24200173 has been known to fail and cause most of these concerns. We have gone to great lengths to supply you with as much swapping information as could be dug up. For More Info visit us at: http://1aau.to/h/cpU/Here are the top 5 problems with the 2nd generation Chevy Avalanche! Learn more about how to optimize 4L60E transmission upgrades. They paid for a rental. Build a KILLER 4L60/E or 700-R4 with Sonnax Build Guides. OPT 4L60E Stage 1 Valve Body Upgrade Package 4L65E 4L70E Transmission Shift Kit Servo Pistons Plate. 6 L (service fill), 9,9 L (Overhaul capacity), 11,7 L (dry fill) Check 12 months, Change 50000 miles. But opting out of some of these cookies may affect your browsing experience. In that case, theres an 18% chance the problem youre running into is severe. This cookie is set by GDPR Cookie Consent plugin. Includes a datalogger that you plug into the OBD2 for us to analyze and optimize . While it's true all you need is a laptop and an OBD-II connector cable, you will need to acquire the update and use special expensive software. The TH200-4R has been available almost as long as the TH700-R4 but is unanimously overlooked as a performance transmission option. # mpn4958781044. It could be internal transmission failure, low transmission fluid, or a faulty Vehicle Speed Sensor (VSS sensor). 1999-2000 GMC K3500 6.5L 4X4 Type: Six speed RWD / AWD, electronically controlled automatic overdrive transmission with torque converter clutch. I rebuilt the 4L60 transmission in my '59 Chevy Truck for the first time, on my own, three years ago using every Sonnax component available for my application. This includes the Smart-Tech Input drum one of my favorites and the Zip kits for a well-built bullet proof transmission. 5 PINION FRONT PLANETARY & 5 PINION REAR PLANETARY (4L85E), SRT STAGE IV 4L85E Six-speed automatic transmission. Is a Transmission Tune up Necessary for My Cars Performance? Several companies are now offering parts to help make swapping in a T56 a whole lot easier. FREE delivery Thu, Jan 12. 320-hp V-8. Majority of units are in stock, if we do not have one in stock they are quickly available in most case, as little as one day. For those that do know that this spot is designated for a GM transmission temperature gauge, they might not realize that all full size GM vehicles (Silverado, Suburban, Tahoe, Sierra, Yukon, Avalanche, or Denali) already have a transmission temperature sensor . Perhaps that's due to their weight and high initial cost. Especially in extreme racing applications, modern horsepower demands modern parts, and that's what Sonnax delivers. So when the throttle is either wide open or completely closed, the converter clutch is unlocked, allowing converter slippage. I'm Stefan, the owner and lead writer at TheDriverAdviser.com!Whether youre planning on buying a new car or you want to know the detailed specs of your current one we got you covered! Give your Avalanche the forceful and quiet sto pping power it needs with our durable brakes, r otors and brake pads. The 4L80-E Transconversion kit features its own computer with software that is custom-tuned to your vehicle's specifications, providing the proper shift points, shift quality, and lockup torque converter function. From street/strip upgrades and heavy-duty jobs to top-tier racing builds, Sonnax makes it easy to deliver rock-solid transmissions customized for any performance level. Common Chevy Avalanche Transmission Problems. UltraPower 8.1L ECM Benefits: Fuel mileage improvement of up to 1 MPG. Reman Pump with New Rotor Vane Slide and Stator Support, loc_en_US, sid_10001_10001_3126190, prod, sort_[SortEntry(order=RATING, direction=DESCENDING), SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)], loc_en_US, sid_10001_10001_3126190, prod, sort_[SortEntry(order=LAST_APPROVED_ANSWER_SUBMISSION_TIME, direction=DESCENDING)]. You may run into transmission oil-pan interference problems when bolting the TH200-4R into early Camaros with the stock TH400 crossmember. Another common problem seen on most wheel drive cars and four-wheel-drive trucks is that moisture gets trapped on the spline and destroys both the trans output shaft as well as the transfer case 4-wheel drive unit splines. Now that you know what kind of problems the transmissions have, its also important to consider the main differences (and which one is therefore considered better or worse). Its overall dimensions are very close to either of those gearboxes, so the Richmond four-speed can be swapped into any car in which a '71-and-later Muncie or Super T-10 was optional. Call Now (888) 242-2605! When you make a better shell, the splines just rips off the end. 1999-2004 Chevrolet Silverado 2500 6.0L 4X4 The dnr1007xr is designed and manufactured with custom-made and rigorously decided on elements, together with pro-audio-fine power deliver capacitors, excessive-stop coupling capacitors, and go-fashioned panel structures. . Lower rpm than factory. Depending on the age of your engine, the factory mile per gallon specs ranged from 13-17mpg for city and 16-22mpg for highway driving. For the really technical stuff, I find writers with experience as a mechanic or who have studied mechanical engineering. The 4L60-E is a transmission that's good or bad, depending on the vehicle that you own. MANUFACTURER WARRANTY ON JOHNSON OR COMP LIFTERS ONLY. The Avalanches are no longer in production, although secondhand units are still available for purchase. BILLET INTERMEDATE SHAFT, Regular Price: $1799.99 2011(September)-2012 Holden VE Commodore Series 2(MY 2012) If your vehicle ever came equipped stock with a TH400 trans, then you could pick up a crossmember from the scrap yard or a source like Classic Industries, which would allow the TH400 to bolt right into your stock frame. Only 7 left in stock - order soon. 7. It's RPO code is "MYC" and it is domestically manufactured in GM's Ypsilanti, Michigan plant. Size: 10.98 X 4.8 X 0.75. Part Number: SUM-7731112. CALL 800-708-0087, Office Hours are Monday-Friday, 9:00am-6:00pm EST. Otherwise, damage may occur to the clutches, seals and valve body. If your flexplate has only one bolt circle, you'll need a dual-pattern replacement, readily available for all Chevy V-8s from sources such as ATI, TCI, and Pioneer.