Remanufactured 6L80 / 6L90 Transmissions 

Ship Direct To Repair Shop
We provide an out-the-door price, with shipping, for a replacement remanufactured 6L80 or 6L90 transmission direct to the repair shop.
Reman 6L80 vs. Rebuilt 6L80?
Both are good options but the best option for you depends on the transmission problem, the year, make and model of vehicle, the mileage and the vehicle value. What kind of warranty coverage are you looking for? Remanufactured transmissions carry a longer, 3 year, nationwide warranty with additional upgrades while a rebuilt unit generally carries up to a 1 or 2 year warranty and upgrades vary from shop to shop.
Reman 6L80 vs. Used 6L80?
Buying a used 6L80 transmission may save you money. However, if the unit does not work properly after installed, you will more than likely have to pay the labor again for removal and reinstall of the transmission PLUS the freight to ship the transmission back to the salvage yard. The additional cost may be higher than installing a reman or rebuilt transmission--not to mention the extra downtime. Warranties for a used transmission is only 30 days, 60 days, 90 days or 6 months. Used transmissions, since there is no way to know how many miles are on them, may fail at any time.
6L80/6L90 Transmissions At Wholesale Prices
At Street Smart, we provide remanufactured transmissions shipped direct from the factory at wholesale prices.
Chevrolet Silverado 1500 Series
Cadillac XLR-V
Cadillac Escalade
Cadillac STS-V
Cadillac CTS-V (6L90)
Chevrolet Corvette
Chevrolet Camaro
Chevrolet Camaro ZL1 (6L90)
GMC Yukon Denali
Pontiac G8
Hummer H2

6L80/90 Applications:

The 6L80 (and similar 6L90) was introduced in late 2005 and is a fully automatic, six-speed, clutch-to-clutch, rearwheel drive, electronic-controlled transmission. The transmission consists primarily of a four-element torque converter, an integral fluid pump and converter housing, a single and double planetary gear set, friction and mechanical clutch assemblies, and a hydraulic pressurization and control system. The four-element torque converter contains a pump, a turbine, a pressure plate splined to the turbine, and a stator assembly.

The torque converter acts as a fluid coupling to smoothly transmit power from the engine to the transmission. It also hydraulically provides additional torque multiplication when required. The pressure plate, when applied, provides a mechanical "direct drive" coupling of the engine to the transmission. The planetary gear sets provide the six forward gear ratios and reverse. Changing gear ratios is fully automatic and is accomplished through the use of a Transmission Control Module (TCM) located inside the transmission. The TCM receives and monitors various electronic sensor inputs and uses this information to shift the transmission at the optimum time. It features clutch to clutch shifting, eliminating the one-way clutches used on older transmission designs.

6L80/90 History:

How Many Variations of the 6L80/90?

There are over 20 different variations of the 6L80/90(so we have over 20 different part numbers!). Each one for a different engine size (bellhousing), one for 4WD vs. 2WD, and varying electronic and solenoid systems for different years. Sometimes we even need the TAG# from your transmission! (We will let you know if we do.)

Only certain models will interchange with others, which is why we ask for your 17-digit VIN# when you order so we are 100% sure it is the matching unit for your vehicle!

Get Price Quote and Availability on a 6L80 / 6L90 Transmission

Our 6L80 / 6L90 Series Transmission Updates and Upgrades

Remanufactured 6L80 / 6L90 vs. Rebuilt or Used

6L Transmission Technical Specs & Vehicle Applications

Buy Now - $2290 Shipped
Fully Dyno Tested
Every transmission shipped has been through a complete road simulation (dyno test). Every transmission is cold AND hot-tested before shipment to ensure quality.
Buy factory direct wholesale and save an average $350 to $1200 vs. buying through shops or dealers. 3 year, unlimited mile, parts and labor, nationwide and transferable warranty. 6 Month Special Financing available through PayPal Credit.
Always free shipping to any commercially zoned address in the continental US*. No up-front core charges.** At Street Smart, we do not charge you hundreds of dollars extra that you have to wait weeks to receive back.
*Residential delivery add $200. We do not ship to AK, HI, PR or International.
**Excluding Dodge Diesel 48RE, 65RFE & 68RFE models.
Your mechanic installs your new transmission and places your old transmission (core) into our reusable container. You let us know when your vehicle is done and we'll send a truck to pick up the core free, within 24 hours.

Buy factory direct and save an average of $350 - $1200 than buying through a dealer or repair shop!

3 Year, Unlimited Miles - Nationwide & Transferable Warranty
Parts & Labor Coverage.

What’s a No Hassle Warranty?

Our commitment to delivering excellent service doesn’t end at the closing of the sale! Should you have any questions or concerns about your Shift Select transmission, our Product Support Team is only a phone call away. So what does a No Hassle Warranty really mean? When your transmission is installed at a licensed repair facility:

• You’re covered for 3 years unlimited mileage on standard application vehicles.
• Your warranty is attached to your VIN and transferable with vehicle ownership.
• You’re covered anywhere (and everywhere) in the continental United States.
• You’re back on the road fast; we send you a replacement transmission as soon as your warranty claim is submitted.
• We pay parts and labor to the shop installing your replacement transmission.

Labor Warranty: Up to $50/hour MItchell book hours for removal and re-installation. Must be initially installed at a licensed auto repair shop* for labor warranty to be valid.

*Licensed auto repair shop: A repair shop whose primary business is automotive repair and provides auto repair service to the general public.

Commercial Application: Vehicles of larger than one ton, transportation for hire (taxis, shuttles, limousine services) delivery service, police and any other emergency vehicles, and/or tow trucks.

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Warehouse Shipping Locations

1-3 Day Transit Time From Contracted National Warehouses

Learn more about Shipping, Warranty, Core Returns, and Ordering from Street Smart

Fill out the form on our website to receive an e-mailed estimate. We send an out-the-door price for a replacement remanufactured transmission shipped free to your repair shop or installer.

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Torque Converters
Fully remanufactured torque converter included. Converters are tested for leaks, lockup and balance. All upgrades exceed OE requirements.

Ordering a Remanufactured Transmission

(866) 812-7560

Call For Instant Quotes
Mon-Fri | 9AM - 5PM EST

Orders before 1PM EST may ship same day (subject to availability).
We accept all major credit cards & PayPal.
PayPal Credit Financing Available.

Watch our Factory Video: A Day in the Life of a Transmission

How Street Smart Transmission Works 

Commercial Applications: 18 months / 100K miles

Learn How you Save Money by Buying Factory Direct from Street Smart

Get Estimates

► Remanufactured Transmissions
► 3 Year, Unlimited Mile Warranty
► Shipping Within 24-48 Hours

Enter Your Vehicle Information For A Transmission Estimate via Email / Text

Get A Quote >>

Note: If your Make/Model is not listed, we do not service your transmission at this time.

SMS Notification: If you provide your phone number, we may send you a price quote via text message.

► Fully remanufactured valve body, with complete system correction and recalibration kit, improves pressure control and shift quality.
► Fluid pump is fully detailed with resurfaced pump rotor mating surfaces and machined pump body mating surfaces to maintain correct fluid pressures.
► Late style stator support shaft with updated seal rings used exclusively in all units to eliminate seal leakage.
► Upgraded 38-element low sprag installed in all units to increase holding capacity.
► Fully remanufactured torque converter is tested for leaks, lockup, concentricity, and balance. Upgrades exceed OE requirements and eliminate the possibility of front seal leaks, premature bushing wear, and vibration.
► Bushings and machined surfaces polished to a mirror-like OE finish of 15 RA or less.

What You Get With Every 6L80 / 6L90 Transmission:

► All new bushings installed in key locations to improve internal fluid flow control and fluid pressures.
► Complete system correction and recalibration kit installed to address several OE flaws. Modifications include updates to servos, the PR system, and valve body accumulators.
► Complete road simulation using a dynamometer testing program called C.A.R.S. (Computer Aided Road Simulation). Every transmission is cold and hot tested before shipment.

Ships with Synthetic Fluid
Ships with Pennzoil Platinum LV Multi-Vehicle ATF Synthetic Transmission Fluid

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Street Smart Transmission | 5128 W. Idlewild Ave | Tampa, FL 33634

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