Pure Drivetrain 8HP95 High Performance Transmission Hard Parts Kit - AWD - Stage 2
The ZF 8HP95 is the heavy-duty second-generation 8-speed that sits behind the biggest engines ZF supplies, including the supercharged Jeep Grand Cherokee Trackhawk, the BMW M760i xDrive and a long list of Bentley, Lamborghini and Rolls-Royce models. In stock form it handles the factory torque without complaint. Add a pulley, a tune and sticky tires and it starts to flare between gears, slip on the 2-3 shift under boost, or lose clutch packs after a few hard launches. The Pure Drivetrain Solutions 12-82-2000 is the Stage 2 hard parts kit for the all-wheel-drive 8HP95, meant for the builder who is opening the case anyway and wants the internals to hold far more than the factory parts were sized for.
The 8HP shifts by applying two brakes and three clutches in combinations, so every gear depends on clutch packs and the hubs that carry them. When power goes up, the paper frictions glaze, the steels hot-spot and cone, and the factory hub splines and tooth profiles become the weak link. Pure Drivetrain builds its HPK kits around three of its own parts: FSR friction plates, C6X steels and pressure plates, and billet 7075 aluminum hubs that are heat treated and hard anodized. The company states the hubs are reworked for more fluid flow through each hub for cooling, with revised clutch tooth profiles and an extended base shoulder to better support the clutch base plates. The C6X steels get a carbon surface layer intended to resist hot spotting, coning and warping, and the FSR material was tested for high friction while staying smooth on low-speed engagements.
Pure Drivetrain sells its HPK in two stages. Stage 2, this kit, is the higher-capacity step above Stage 1. The company asks buyers to confirm fitment with them before ordering, so send your transmission tag details and power goals before you commit.
Rule out the cheap causes first. Low fluid makes any 8HP slip and shift poorly, so check the level at the correct temperature before blaming the clutches. Pull codes and look at clutch adaptation values, then drop the pan and look at what is in it. Our Jeep Grand Cherokee 8-speed common problems guide covers the Trackhawk and SRT complaints, and ZF8HP pressure control solenoid symptoms explains how a hydraulic fault can look like a clutch failure. If the valve body or solenoids are the issue, a hard parts kit alone will not fix it.
This kit is listed for the AWD ZF 8HP95. That covers all-wheel-drive applications such as the 2018-2021 Grand Cherokee Trackhawk and the BMW M760i xDrive, but ZF built several 8HP95 variants, and the Audi and Bentley version (0D6) differs from the BMW and Chrysler units. The 8HP95 is a second-generation case, so first-generation 8HP90 parts do not interchange with it. Read the stamping on the rear of the case and send it to us with your year and VIN before ordering. If your case turns out to be an 8HP70, the 8HP70 AWD Stage 2 hard parts kit is the match. See every 8-speed part we carry on the ZF 8HP collection page.
| Brand | Pure Drivetrain Solutions |
| Part number | 12-82-2000 |
| Fits | Pure Drivetrain 8HP95 High Performance Transmission Hard Parts Kit - AWD - Stage 2 |
| Type | Transmission Rebuild Kits |
| Condition | New |
| Ships | Same business day (in stock), from the USA |
| Warranty | 1-year |
Doing this repair right usually means replacing these at the same time. Same transmission, ships together.
The Trackhawk uses the AWD 8HP95, which is what this kit is listed for. Confirm the stamping on the rear of your case and send your VIN so the variant can be matched before you order.
No. It is a hard parts kit: FSR frictions, C6X steels and pressure plates, and billet hubs. You or your builder still disassemble the unit, replace gaskets and seals, and reassemble it.
Pure Drivetrain offers its hard parts kit in two stages, with Stage 2 as the higher holding-capacity step. Tell us your power level and use, and the build can be matched to the right stage.
A tune can raise line pressure and firm up shifts, but if the clutches are already glazed or burned it only hides the problem for a while. Check the fluid and inspect the pan before deciding.
Use ZF LifeguardFluid 8 or a fluid Pure Drivetrain approves, set the level hot, reset adaptations, then drive at least 500 miles of mixed stop-and-go before full-power runs.
