10L90 Clutch Module, new and ready to install. Fits the 10L90. Ships fast from the USA.
If your GM ten-speed is out of the truck because it slips, flares between gears or left a layer of burnt lining in the pan, this friction clutch module gives you the frictions for every pack in one box. It is packed to cover a complete 10L90 and is also used for 10L80 rebuilds, the ten-speed found in 2017-up Silverado, Sierra, Tahoe, Suburban, Yukon, Escalade and the Camaro. Buying the frictions as a module means every pack goes back together with fresh, matched lining instead of mixing new plates with tired ones.
GM builds ten forward ratios from four planetary gearsets controlled by six clutch packs, labeled A, B, C, D, E and F. Two or more packs are holding in any gear, and Sonnax's application charts show that GM reassigned which packs apply in several gears when it moved from the Gen. 1 design (2019 and earlier) to the Gen. 2 design (2020 and later). Because nearly every shift releases one pack and applies another, a single glazed or thin pack shows up in several gears, not just one. Lining wear also opens up clearance, and once clearance is out of spec the TCM can no longer time the handoff, which is felt as a flare, a bind or a hard bump.
A worn friction set is a teardown repair, so be sure it is the problem. Sticking clutch control valves and weak solenoids cause many of the same complaints, and you can learn to test for them in our 10L80 shift solenoid symptoms guide. Line pressure faults are covered in our pressure control solenoid guide. Also keep in mind that Sonnax lists worn sealing rings and hub bushings as one of the leading causes of lost clutch pressure in these units, so a slip can come from a leak rather than the lining itself. If the pan shows lining debris and the slip survives a relearn, the clutches need replacing.
This module is listed for the GM 10L90 and 10L80. The listing says it has enough plates for a full 10L90 and calls out one extra plate for the C clutch and one for the D clutch in connection with the 10L80, because those two packs are not stacked identically in the two versions. That makes the plate count in the C and D packs the thing to check: lay out what you remove from each pack and compare it with the kit before you start assembly. If you are not sure which version you have, send your year, VIN and RPO code and we will help match it. More ten-speed parts are on our 10L80 and 10L90 collection page.
| Fits | 10L90 |
| Part type | Clutch Module |
| Condition | New |
| Brand | OEM |
| Ships | From the USA |
| Warranty | 1-year |
Doing this repair right usually means replacing these at the same time. Same transmission, ships together.
It is a full friction module with enough plates for a complete 10L90 rebuild, covering the A through F packs. Steels, seals and sealing rings are separate.
Yes, it is listed for the 10L80 too. The C and D packs differ in plate count between the two versions, so compare each pack you remove with the kit before assembly.
Dexron ULV. GM lists a 7.7 liter (8.1 quart) service fill for the 10L80; a dry unit after a rebuild takes more.
An overhaul seal and gasket kit with new sealing rings, the filter, and any steel plates that are heat-marked or warped.
Most often the clearance in one or more packs is out of spec or the relearn was not performed. Valve body wear can also cause harsh shifts that new frictions will not cure.
