Ford 6R75 6-Speed Automatic · Ford/Lincoln · Expert rebuild service since 1987. Lifetime warranty. Free diagnostic.
2006–2014 Ford Expedition; 2006–2014 Lincoln Navigator; 2007–2014 Ford F-150 (4.6L/5.4L); heavier-duty 6-speed variant
| Configuration | 6-speed automatic — heavy-duty ZF-derived platform |
|---|---|
| Gear Ratios | 1st 4.17:1 · 2nd 2.34:1 · 3rd 1.52:1 · 4th 1.14:1 · 5th 0.87:1 · 6th 0.69:1 · Rev 3.40:1 |
| Fluid Type | Mercon LV ATF |
| Fluid Capacity | 14.5 qts total, 7.0 qts service refill |
Same solenoid body failure pattern as the 6R60 but under higher towing and hauling loads. Solenoid body degradation causes erratic shifting and limp mode.
Symptoms: Limp mode; P0750-series codes; harsh or missed shifts
High towing loads at elevated temperatures accelerate pump wear in the 6R75. Worn pumps cause low line pressure and clutch slip.
Symptoms: Slip under trailer load; clears when cool; progressively worse over time
The OD clutch pack in the 6R75 is a wear item in sustained towing applications. Frequent OD on/off cycling in hilly terrain accelerates wear.
Symptoms: Slip or shudder in 5th or 6th gear under load; OD cancel improves symptom
Full disassembly. Solenoid body replaced. Pump vanes and wear ring measured and replaced. OD clutch pack replaced with upgraded kit. All clutch packs and soft parts replaced throughout. Converter flushed.
Mercon LV every 40,000 miles. Towing duty: service every 25,000 miles. Add an auxiliary transmission cooler for sustained towing over 8,000 lbs. Monitor transmission temperature.
Usually OD clutch pack wear or pump wear — both are heat-related towing failures. We do a pressure test to isolate which. Caught early, OD clutch replacement can be done without a full rebuild.
Rated to approximately 550 lb-ft from the factory. With an upgraded rebuild, reliable beyond that for occasional towing.
The 6R75 was phased out after 2014 when the 6R80 took over. They share the same bellhousing pattern.
2–3 days. We stock all parts.
Mercon LV. Do not substitute — incompatible with other Ford ATF specs.
Free diagnostic, written estimate, lifetime warranty. Chicago's 6R75 rebuild specialists since 1987.
