Originally Posted by jk7208
can anyone tell me if a 8.8 rear 3.73 gears from a 98 explorer will fit my 96 gt? If so what i will need to make the swap? I can get one for a good price rotor 2 rotor calipers included. I'm thinking it will also change my axles from 28 to 31 splines? Any help or info will be greatly appreciated thanks
Yea, the gears should swap right over as both should have an 8.8" rear end. You will probably get a whine or roar though as the gears will probably already have a gear wear pattern and it is nearly impossible to match it. When you do the swap be sure to check the run out on your carrier. You will need differential fluid, friction modifier, a crush sleave, and tools such as a pinion depth finder, mic, and a few others that don't come to mind right not. I suggest changing the bearings while there also (Inner/Outer Pinion)
I'm not sure about the swap from 28 to 31 Spline but if so you would just need to change the whole carrier and axles if they fit into your housing.