10L90 Clutch Module 2018, new and ready to install. Fits the 10L90. Ships fast from the USA.
This is the Raybestos friction module RGPZ-269, built with Raybestos GPZ high-energy lining for the GM 10L90 ten-speed from 2018 on. It is aimed at the rebuilder who has a 10L90 apart because of slipping, a flare between gears or burnt clutch material in the pan, and who wants a friction set that holds up to more heat and torque than the factory lining. The 10L90 is the higher-torque member of GM's ten-speed family, first seen behind the supercharged LT4 in the 2017 Camaro ZL1, so this is the friction choice for a high-output car or truck, a tuned unit, or one that has already burned up a set of clutches.
The 10L90 makes ten forward speeds from four planetary gearsets and six clutch packs lettered A through F. Every gear uses a combination of those packs, and each shift is a handoff in which the TCM releases one clutch while applying another with only about 0.3 seconds of overlap. That timing depends on each friction pack holding at the apply pressure the TCM expects. When a lining glazes or wears thin, clearance in the pack grows, the oncoming clutch picks up late and the engine flares or the shift lands with a bang. GPZ is Raybestos' performance friction material, sold for heavy-duty and high-power use, so it is a sensible upgrade when the old set failed from heat.
Many 10L shift complaints start in the valve body, not the clutches. Sticking clutch control valves, weak solenoid retainer clips and worn bores all mimic a clutch problem, and GM's recall on later units was caused by valve body wear. Rule those out with our 10L valve body testing guide. If the slip is tied to one shift, our 10L80 3-4 clutch failure guide walks through which pack is involved. Debris in the pan and a slip that persists after relearn mean the frictions are worn and this module is the right part.
The listing fits the GM 10L90, 2018 and later. The 10L80 and 10L90 share architecture but differ in pack sizing and plate count in some clutches, and GM changed the valve body and clutch control from Gen. 1 to Gen. 2 around late 2019. Before ordering, count the frictions in each pack you remove and compare them with this module, or send us your year, VIN and transmission RPO code and we will check. Browse matching parts on our 10L80 and 10L90 collection.
| Fits | 10L90 2018 |
| Part type | Clutch Module |
| Condition | New |
| Brand | Raybestos |
| Ships | From the USA |
| Warranty | 1-year |
Doing this repair right usually means replacing these at the same time. Same transmission, ships together.
GPZ is Raybestos Powertrain's high-energy friction lining, marketed for heavy-duty, towing and high-horsepower use where OE material overheats.
The module is listed for the 10L90, 2018 and later. Some packs differ in plate count between the 10L80 and 10L90, so count the frictions you remove and compare before using it in a 10L80.
It is a friction module. Plan on seals, sealing rings and gaskets from an overhaul kit, and inspect the steels for heat bluing or warpage before you reuse them.
Only if the cause is worn clutches. Valve body wear and sticking solenoids cause many 10L shift complaints, so test those first.
Yes. After a rebuild, perform the GM relearn so the TCM resets apply pressures and timing for the new linings.
