ZF 8HP75 • Chevrolet L8T & L8P • Gen 3 Hemi
Full OEM-controlled integration using Chrysler GPEC2A ECU. No standalone controllers.
Chevrolet L8T & L8P crate engines with full integration kits for classic cars and restomods.
Mopar power with seamless integration into classic chassis.
The most reliable 8-speed automatic. Ideal for high-torque street and performance builds.
No standalone controllers. No valve body hacks. Pure factory Chrysler GPEC2A logic.
We’ve successfully applied this strategy in JT/JL Wrangler LS/LT packages since 2018, operating ZF 8HP transmissions using the factory Chrysler GPEC2A ECU over native CAN architecture.
Our preferred transmission for Bruiser Power conversions. Full OEM-controlled integration with Chrysler GPEC2A ECU.
| Gear | Ratio |
|---|---|
| 1st | 4.714 |
| 2nd | 3.143 |
| 3rd | 2.106 |
| 4th | 1.667 |
| 5th | 1.285 |
| 6th | 1.000 (Direct) |
| 7th | 0.839 |
| 8th | 0.667 |
| Reverse | 3.317 |
| Specification | ZF 8HP70 (Gen 1) | ZF 8HP75 (Gen 2) |
|---|---|---|
| Generation | Gen 1 | Gen 2 |
| Max Torque | ~700 Nm | ~750 Nm |
| Internal Updates | Standard | Improved clutches & efficiency |
| Best For | Moderate torque | L8T / L8P & Gen 3 Hemi swaps |
We retain factory Chrysler software and control strategies. The transmission operates directly by the OEM Chrysler GPEC2A ECU over native CAN architecture — exactly as it would in a production vehicle.
8-speed automatic. Lightning-fast shifts with OEM refinement when paired with GPEC2A.
High-output 6.6L LT variant for modern classic builds.
6.6L V8 • Iron block • Massive low-end torque. Perfect for heavy classic trucks and restomods.
Tell us about your classic car or restomod project. Our team will respond within 24 hours with tailored conversion options.