Serving Our Country!
Join Date: Nov 2007
Location: Austin, TX
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If _either_ of your front wheels are spinning while in 4wd ... then both of your hubs are working and engaged. If one of the hubs were not engaged then the axle shaft on that side would spin within the hub (without delivering torque to the wheel), the differential carrier would be spinning, and the other axle shaft/wheel (with hub engaged) would be stationary (or rolling along the ground at vehicle speed with no power applied to it).
Long story short ... if one tire is spinning faster than the vehicle is moving then both hubs are working but the one that isn't spinning has more traction than the spinning tire. Read about open differentials (that is what you have in the front) versus lockers and limited slip differentials.
There is a certain artform to driving a truck with open differentials offroad. Unfortunately, it doesn't usually involve pointing the truck in a straight line, holding the wheel steady, and romping on the throttle. I grew up driving open differential 2wd trucks in Florida sugar sand ... and literally driving circles around the yuppies poorly driven, jacked up F350 show trucks.
Your truck isn't broke ... you just need to figure out how to drive it ... or upgrade the differential. Driving offroad effectively is usually more about the driver and less about the equipment anyways ... to a point, of course.
2002 F-250 Lariat Extended Cab Long Bed, 7.3L, Auto, 4x4
- 6" BDS Suspension lift (All spring)
- 315/75R16 BFG A/Ts
- DP-Tuner F6
- DIESELSITE CPR Fuel System
- Turbo-Master Wastegate Controller
- Donaldson AIS Intake w/ "Zoodad" and AIH Delete
- MBRP 4" T304 Exhaust
- Coolant filter, Evans NPG+ Coolant, 203* Thermostat and Billet Housing
- Factory Tech Valve Body
- ISSPRO Gauges (Boost, Pyro, Trans)