Jonman20

I bought a rear end with 373 and a posi that came from a ranger at a swap meet and it was suppose to fit my 88 gt so I got a guy to put it in for me and he said my axles r to small they just spinned in the rearend so I figure it has to be for 31 spline axles Caz there is only to types of axles that came in a 8.8 right? And my is how do u tell what axles fit the diff and if it is 31 spline axles what do I need exactly to change my car from 28 to 31?

uedlose

count the splines in the carrier, but it should be a 31 spline. So you will need new axles that are 31 spline.

mjr46

also ranger axles , you can only use one side, so make sure they gave you the proper side if spline count in diff corresponds

Jonman20

ok well if it is 31 spline axles what do i all need to make them work

mjr46

31 spline axles

Venomantidote95

+1 LOL but another note the higher spline axles will have a greater diameter also. If its a 31 and you put your stock 28 in its not going to engage the carrier teeth.

mustangGT86_05

Im assuming you're lookin to hold onto your 4 lug set up, if you are you may need to convert to 5 lug to get this axle to work properly, I'm not 100% sure but I don't think they made 31 spline 4 lug axle shafts

stdyhand

31 spline 4 lug axles at American Muscle.

sn95_331_GT_ yellow

shouldve just grabbed an 8.8 out of an SN95...

Venomantidote95

Yes there better build from the start!