GM 10L80/90 Archives - Transmission Digest
Toledo Trans-Kit 10L transmissions now available

Seal Aftermarket Products announced that Toledo Trans-Kit overhaul kits for 2017 and newer GM 10L80 and 10L90 transmissions are now available. Six kits, with and without pistons, are available: According to the company, these clutches are included with the referenced overhaul kits and also available separately:

Sonnax introduces TCC signal damper piston kit for Ford, GM 10-speeds

Sonnax has introduced a new TCC signal damper piston kit for GM and Ford 10-speed transmissions. Sonnax says this kit can correct the operation of the converter in GM 10L80/90 (Gen. 1) and Ford 10R60/80 transmissions. According to Sonnax, this kit allows long-lasting and quick repair of the lower valve body casting without reaming, and

Sonnax introduces 10L/10R LPC signal damper piston kits

Sonnax has introduced a new line of LPC signal damper piston kits for Ford and GM 10-speed transmissions. Sonnax says these kits can correct EPC circuit pressure variation for these transmissions by replacing the worn OE damper and installing the appropriate kit. The kits install without the need of reaming the valve body.

Sonnax-105740-04K-1400
Alto releases bushing kit for 10-speed transmissions

Alto has released a new 11-piece bushing kit for Ford and GM 10-speed transmissions. The kit (part no. 231625B) works for 10L80, 10L90 and 10R80 transmissions of model years 2017 and on.

Sonnax unveils valve kits for ten-speed Ford, GM transmissions

Sonnax highlights its valve kits for Ford and GM ten-speed transmissions. The first of these is a line of oversized main pressure regulator valve kits #105740-20K (pictured above) for GM 10L60/80/90 (Gen. 1) and Ford 10R60/80/90/140 transmissions and #105740-21K for GM 10L60/80/90 (Gen. 2) transmissions. The company says these kits can recover hydraulic control and

Sonnax-105740-20K-600
Alto introduces piston kit for Ford, GM 10-speed transmissions

Alto has introduced a new three-piece molded piston kit for Ford and GM 10-speed transmissions. The kit covers Ford 10R80 and GM 10L80/90 transmissions, model years 2017 and on. The Alto part no. is 231670.

Alto-231670-1400
Critical wear areas and vacuum test locations: GM 10L and Ford 10R series

Sonnax has provided the following guide on critical wear areas and vacuum test locations for the GM 10L series and the Ford 10R series. Technicans working on these models should find the following four pages helpful. Read more columns from the TASC Force Tips series here.

02feb23_TASC-feature-1400
Sonnax highlights 10L/10R solenoid stabilization retainer, 9T clip insert

Sonnax highlights two product lines for helping with heavy solenoids for GM/Ford 10L/10R and 9T series transmissions. According to Sonnax, the heavy OE LFS solenoids that are common to these transmissions are known to result in collapse of the OE retainer clip. Sonnax 10L/10R solenoid stabilization retainer with thicker and longer clip with positive stop

Sonnax-105740-19K
RatioTek introduces professional calibration kit for GM 10L80, 10L90

RatioTek has introduced a new professional calibration kit for GM 10L80 and 10L90 10-speed transmissions. The kit (part numbers RT-10L80/L-PR and RT-10L80/L-PRX) fits model years 2020 and later with a manual valve. According to the company, this kit fixes common complaints of neutraling out and bang downshifts, and provides quicker shifts and more torque capacity.

RatioTek-10L90-PR-Kit-1400
RatioTek introduces new tuner kits for GM, Ford 10-speed transmissions

RatioTek has introduced new transmission tuner kits for GM and Ford 10-speed transmissions. According to the company, these kits install from the bottom without the need to remove the transmission. Benefits of both kits include, according to RatioTek: increased torque capacity, and lube flow; fixed common complaints of neutraling out and bang downshifts; and quicker

GM 10L80: A new kind of pump noise

How quickly time passes by. The GM 10L80/90 transmissions began production in 2017, meaning that we’re closing in on six years of this transmission being on the road. Many who work in the dealerships have become privy to the immediate failures that occur in this unit. And now, with some of these transmissions coming out

Shift-Pointers-August-Figure-1
Sonnax highlights solenoid stabilization clip inserts for GM, Ford 10-speed transmissions

Sonnax highlights the solenoid stabilization clip insert #105740-01K for Ford and GM 10-speed transmissions. Sonnax says users can secure LFS solenoids in GM 10L80 and 10L90 as well as Ford 10R80 and 10R140 transmissions with this product, used in conjunction with OE spring retainers. These steel clip inserts force the OE spring retainers to completely

Sonnax-105740-01K