rear end

[jacob_9249]

does anyone know about how much horse and torque a 7.5 rear end will hold.

 

[lx93notch]

the 7.5 would be ok if your doin a 5.0 swap and dont want posi. if your goin any bigger than a 5.0 i would get a 8.8 rear. the swap itself isnt that hard. you just have to fight old rusty stuff, but is nothing a s*** load of penetrating oil cant fix. i just did the swap in my 93 coupe bout 5 months ago and i think the hardest part was gettin the dam brake lines replaced and flared

 

[bynummustang]

In my mind, 8.8 is best for under 350 torque. Anything over that, I'd say 9 inch, but I'm one cautious SOB.

 

[lx93notch]

yea i would go with that if you have the money to do that swap. we have had a couple of shelbys come in here at work with rear end noise complaints and the housing itself was actually stretched wider from the power

 

[convo351pro]

It depends on how the torque is getting to the axles.. if you run a 5 speed and lauch pretty high it won't last long. However if you run an automatic there is no real big bang of power hitting the axles, I've seen a 82 mustang run 11.6 in the 1/4 mile, C4 automatic, and 7.5" rear.

I hope this helps!

 

[slow84lx]

A stock 5.0, or even 3.8 in a few cases can break the 7.5. When not abused the 7.5 can last a very long time. The AOD cars are much easier on the rearend than the stick cars are.

BTW, early Fox v8 mustangs with the 7.5 will also have traction lok.

 

[SVT32VDOHC]

7.5 will hold up a little while. They are not posi, but when I did my 5.0 T5 swap into my 4cyl coupe, I rolled on the 7.5 axle til my 8.8 was built. I one wheel peeled it around town for a few weeks, and no breakage. My 5.0L engine was stock, with exhaust.

You can make the 7.5 a posi, and weld the tubes if you don't have access to an 8.8. The swap is easy as said, I would also buy some LCA's while it's out. That will help wheel hop, and traction.