jayc283

ITs me again with the 4cylinder....when u swap to the 302 or bigger im pretty sure u have to swap the tranny but do u have to swap the rearend i have the 7.5 i think do i have to go 8.8 please someone out there help ??

ben5.0

yes. from what i understand, 7.5 inch wont hold up under the increase in horsepower. the 8.8 is a must

4eyedfreak

Thats not true because depending on the power of the engine swap a 7.5 with whatever stcok gear could hold. The 8.8 rearend houses a more circle gear which is better than the 7.5 which houses a more oval gear. To save the money, unless your really going to build the car, i would just get 3.55's or swap out the gear in the 7.5 to whatever, they do make gears for the 7.5. My 83 had a 7.5inch with my stock v8 5.0. The only reason why i got an 8.8 was because i bought the whole rearend fullybuilt for cheap....And i mean cheap. I hade it checked out by a driveline shop and they refreshed everything and i had a brand new fully built strange rearend.

hotstang97gt

it will hold but im not shure on how long though. might as well just get the 8.8. where abouts you located? i have one that i will let go for cheap

BADNOTCH

You can get a 8.8 housing and install the axles out of your 7.5, they are the same axles, you will just be runnin a bigger ring gear. I have had a 7.5 hold up to a pounding. If you run across a good deal on an 8.8 pick it up, until then put a gear in the 7.5 and run it till it breaks.

jayc283

Garland tx is where im at....thanks guys

hotstang97gt

im shure shipping would be alot to ship it out there so i guess you wouldent want to. if you looked into want ads im shure you could find a good deal. good luck