Differential Check - Tractech(R) Truetrac(R) (Dana)
WARNING: This page is about a different car, the 2003 Ford Pickup, 2003 Ford F550 Super Duty, 2003 Ford F450 Super Duty, and 2003 Ford Excursion. However, it is still accessible from the selected car via links, so may be relevant.
- Shift the transmission into NEUTRAL.
- Raise and support the vehicle.
- Spin either rear wheel.
- Both wheels must spin with a fluid motion. Any feeling of gripping and release/roughness indicates that additional inspection of the axle assembly is necessary. For additional information about axle disassembly and inspection, refer to REAR DRIVE AXLE/DIFFERENTIAL-DANA 80 or REAR DRIVE AXLE/DIFFERENTIAL-DANA S135 .
- Shift the transmission into gear.
- Spin either rear wheel.
- The other wheel must spin with a fluid motion in the opposite direction and at the same speed of the wheel being spun. Any feeling of gripping and release/roughness indicates that further inspection of the axle assembly is necessary. For additional information about axle disassembly and inspection, refer to REAR DRIVE AXLE/DIFFERENTIAL-DANA 80 or REAR DRIVE AXLE/DIFFERENTIAL-DANA S135 .