83stang

I HAVE AN 83 STANG WITH STOCK GEARS IN THE BACK AND I WANTED TO PUT 3.73S OR 3.55S IN BUT ITS ONLY GOT A 7.5 INCHE REAR END AND IM AFRIAD OF WHAT MY RPMS WILL BE CRUSIEN DOWN THE INTERSTATE DOES ANY ONE HAVE AN IDEA WHAT THE RPM WOULD BE DOING ABOUT 75 MPH AND IF HAVING A 7.5 REAR END IS A PROBLEM I CANT FIND GEARS FOR THE 7.5 REAR END ANY WHERE... OR WOULD I BE BETTER OFF WITH A NEW REAR END 8.8 OR 9 INCHER?

converted

You are better off with an 8.8 in back. But if money is an object, jegs and summit both have gears for the 7.5

spike306

agreed, an 8.8 is definitly worth investing in!!!!