Mud in my Veins
Join Date: Dec 2000
Location: Memphis, TN
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Re: general question about axles
Most of the reasons do apply primarily to rock crawling, but it's not only the engine that applies stress to the driveline. When you put on bigger tires, you increase the length of the lever between the ground and the hubs, which puts more twist (in every direction) on the axle shafts (on a semi-floater) or hubs (full floater). This stress is applied during braking, cornering, hitting bumps, landing after jumps, AND accelleration. It is ultimately applied to the wheel bearings, lug studs, rims, axle housings, leaf springs & their U-bolts, radius arms & axle pivots, shocks, brakes, U-joints, etc. Heavier axles are made to take more of all of these stresses.
83 Custom w/95 4.9L EFI, 78 NP435, 83 NP208, 83 D44IFS 3.07, 87 Ford 8.8ABS 3.08, Michelin LTX AT 31x10.50R15