ZF 8HP75 8-Speed Automatic · Chrysler/Dodge/Jeep/RAM · Expert rebuild service since 1987. Lifetime warranty. Free diagnostic.
2019–present RAM 1500 (Hemi and eTorque); 2019–present Dodge Challenger/Charger (high-output applications); heaviest-duty ZF 8HP in FCA/Stellantis portfolio
| Configuration | 8-speed automatic — highest torque capacity ZF 8HP variant |
|---|---|
| Gear Ratios | 1st 4.71:1 · 2nd 3.14:1 · 3rd 2.11:1 · 4th 1.67:1 · 5th 1.29:1 · 6th 1.00:1 · 7th 0.84:1 · 8th 0.67:1 · Rev 3.30:1 |
| Fluid Type | Mopar ZF+8 ATF |
| Fluid Capacity | 11.0 qts total, 6.0 qts service refill |
ZF 8HP TCC shudder pattern — universal to all 8HP variants, fluid-related.
Symptoms: Shudder at 40–60 mph; resolves with ZF+8 fluid change in most cases
The eTorque mild hybrid system's integration with the 8HP75 can cause shift quality issues when the mild hybrid motor intervenes during shifts.
Symptoms: Momentary hesitation during upshifts; engine/transmission coordination issues
High-mileage solenoid wear under maximum Hemi torque.
Symptoms: Erratic shifts; P-codes under hard load
Full disassembly. TCC replaced. eTorque interface inspected (if applicable). Solenoid set replaced. All clutch packs replaced. ZF-spec soft parts. ZF+8 fluid flush.
ZF+8 fluid every 40,000 miles. eTorque systems require the RAM dealer for software integration issues.
Yes — the 8HP75 has higher torque capacity, designed for the latest Hemi and RAM 1500 applications. Rated above 500 lb-ft.
eTorque is RAM's mild hybrid system that adds a belt-driven motor/generator. It coordinates with the 8HP75 for smooth stop-start. eTorque software issues can cause shift hesitation — dealer software update resolves most cases.
Mopar ZF+8 ATF.
$2,600–3,600. 2–3 day turnaround.
Yes — we stock ZF 8HP rebuild kits for all variants including the 8HP75.
Free diagnostic, written estimate, lifetime warranty. Chicago's 8HP75 rebuild specialists since 1987.
