Pure Drivetrain Solutions ZF 8HP51 Stage 3 Transmission Rebuild – Toyota GR Supra (A90/A91)

OVERVIEW

Pure Drivetrain Solutions builds this rebuild around fortifying the overall holding power and reliability of your transmission. By modifying OEM parts and replacing them with PDS billet components, the build reaches some of the highest clutch counts currently available for the ZF 8HP platform and the most holding power PDS offers. Each stage steps up clutch count, holding capacity and the number of upgraded parts included.

This is a build service performed on your own ZF 8HP51 unit, not an outright sale of a new transmission. Pure Drivetrain Solutions completely disassembles the transmission, washes the casing and housings, inspects every hard part and checks the case for cracks or damage before the unit is reassembled with upgraded internals. This Stage 3 package for the A90 and A91 Toyota GR Supra is built around a billet clutch hub, upgraded clutches and steels throughout the transmission and heat treated, hard anodized clutch baskets.

The main benefit of the optional high-stall torque converter is the increased stall speed while foot braking, which helps build boost and leave harder on a launch — particularly when leaving in second gear.

SPECS

• Rebuild service performed on the customer's own ZF 8HP51 automatic transmission — not an outright sale of a new unit
• Complete disassembly, vigorous washing of the casing and housings, and inspection of all hard parts and the case for cracks or damage
• Billet clutch hub
• Upgraded clutches and steels throughout the entire transmission
• Heat treated and hard anodized clutch baskets, modified for improved oiling
• Upgraded O-rings and seals within the valve body assembly
• Cog drives and shaft modified for better lubrication transfer
• All new gaskets, seals and rings
• Brand new pan, filter element and fluid supplied with the build
• Optional high-stall race torque converter: super alloy billet stator, performance lockup clutch assembly, fully internally TIG welded, turbine blade sequence modifications, performance bearing assembly
• Laser etched Pure Drivetrain Solutions logo

PARTS INCLUDED

• Your ZF 8HP51 transmission, fully rebuilt to the specification listed above
• Upgraded clutch packs — PDS proprietary paper frictions and steels
• Modified, heat treated and hard anodized clutch baskets
• Complete gasket, seal and ring set, including upgraded valve body O-rings and seals
• New transmission pan and filter element
• Transmission fluid required to fill the unit
• Laser etched Pure Drivetrain Solutions logo
• Rebuilt high-stall race torque converter, if that option is selected at checkout

TECH RESOURCES

Additional Parts Required

• Your transmission core. Pricing covers rebuilding the unit you send in. If you do not have a core to send, contact Speed Logic before ordering — core purchase is quoted separately.
• Freight both ways. Shipping the core to Pure Drivetrain Solutions and the finished unit back is not included in the listed price.
• Post-install TCU adaptation / re-learn. Pure Drivetrain Solutions calls for the transmission re-adaptation (re-learn) process to be run after installation, which requires a scan tool capable of ZF 8HP clutch-fill adaptation. Installer supplied.
• Transmission fluid, pan and filter are already included with this rebuild — no separate fluid or filter kit purchase is required.
• Pure Drivetrain Solutions does not specify a transmission flash or TCU tune as a requirement for this rebuild.
• Installer-supplied transmission jack, lift and standard driveline service tools for removal and refitting.

Installation

• Pure Drivetrain Solutions – ZF 8-Speed Fluid Fill & Break-In Procedure (PDF)
• Pure Drivetrain Solutions – ZF 8-Speed Change Fluid, Pan & Filter Procedure (PDF)
• Pure Drivetrain Solutions – 8HP Resources: transmission identification, TCM adaptation and quick-learn procedures
• Pure Drivetrain Solutions – transmission break-in process
• Fluid level must be checked with the transmission fluid between 40°C and 50°C, per the PDS fluid fill procedure.
• Break-in: run the re-adaptation procedure if possible, then complete roughly 500 miles of easy stop-and-go driving, cycling up and down through the gears. PDS states that cruising on the highway will not properly break in the clutches.
• Pure Drivetrain Solutions does not publish a vehicle-specific removal and installation manual for this unit. Removing and refitting a ZF 8HP transmission is a specialist job and should be carried out by a qualified transmission shop.

Notes

• Pure Drivetrain Solutions does not publish an official part number, a rated torque capacity, a published lead time or a written warranty for this build. Confirm fitment, current build time and warranty terms with Speed Logic before ordering.

VEHICLE APPLICATIONS