Recommended Differential Set-Up Specifications for various differentials.

 

Model Pinion Bearing Preload (in-lbs) Backlash (.001 in) R.G. Bolt Torque (ft-lbs) Bearing Cap Torque (ft-lbs)
New Used
AMC
AMC Model 20 14–19 6–8 .006–.010 65 65
AMC Model 35 12–15 6–7 .006–.010 55 55
GM
GM 7.5 12–15 8–10 .006–.010 60 60
GM 10 Bolt 12–15 8–10 .006–.010 60 60
GM 12 Bolt 15–20 10–12 .006–.010 60 60
GM 8.875″ (12 Bolt Car) 15–20 10–12 .006–.010 60 60
GM 8.875″ (12 Bolt Truck) 15–20 10–12 .006–.010 60 60
GM 9.5″ 20–25 10–15 .006–.010 120 120
GM 10.5″ (14 Bolt) 35–40 15–20 .006–.010 120 120
Chrysler
Chrysler 7.25″ 12–15 6–7 .006–.010 55 55
Chrysler 8.25″ 15–20 10–12 .006–.010 55 55
Chrysler 8.75″ 15–20 10–12 .006–.010 55 55
Chrysler 9.25″ 25–35 15–20 .006–.010 120 120
Dana Spicer
Dana 25 15–25 10–15 .006–.010 55 55
Dana 27 15–25 10–15 .006–.010 55 55
Dana 30 15–25 10–15 .006–.010 55 55
Dana 35 15–25 10–15 .006–.010 55 55
Dana 44 15–25 10–15 .006–.010 60 60
Dana 50 20–30 15–20 .006–.010 100 100
Dana 60 20–40 15–25 .006–.010 120 120
Dana 61 20–40 15–25 .006–.010 120 120
Dana 70 20–40 15–25 .006–.010 150 150
Dana 80 20–40 15–25 .006–.010 150 150
Ford
7.5″ 16–28 8–14 .008–.015 70–85 70–85
8.0″ 12–14 6–7 .010–.015 60 60
8.7″ 14–19 6–8 .010–.015 60 60
8.8″ 16–29 8–14 .008–.015 70–85 70–85
9″ OEM R&P 22–32 8–14 .010–.016 70 70–85
9″ Non-OEM 22–32 8–14 .008–.012 65–80 70–85
9″ Daytona 14–16 6–8 — — —
9-3/8″ 14–16 6–8 .010–.015 70 60
10-1/4″ 20–35 6–8 .011–.016 95 80
Toyota
Passenger 11–13 5–6 .006–.009 55 60
Truck w/o V6 12–15 5–6 .006–.010 70 70
Truck: V6 14–17 5–6 .006–.010 70 70

About The Author

Founder / Administrator at  | Staff Profile

Jim Oaks is the founder of The Ranger Station, one of the longest-running Ford Ranger enthusiast communities on the web. He has spent over three decades owning, modifying, repairing, and driving Ford Rangers on the street, trail, and cross-country routes.

Since launching TheRangerStation.com in 1999, Jim has documented thousands of real-world Ranger builds, technical repairs, drivetrain swaps, suspension modifications, and off-road tests contributed by owners worldwide. His work has been referenced by enthusiasts, mechanics, and off-road builders looking for practical, experience-based information rather than theoretical advice.

Jim’s hands-on experience includes long-distance overland travel, trail use, drivetrain and axle upgrades, suspension tuning, and platform comparisons across multiple Ranger generations. The content published on The Ranger Station is grounded in first-hand experience and community-verified data, not marketing claims or generic specifications.