7.5 rear end to ford 9 inch driveshaft modification???/

[monteman1]

i am removeing my stock 87 7.5 rearend from my 87 monte ls and installin a ford 9 inch g-body set up, i need to know if i am gonna have to cut my driveshaft or lengthen it,,, and if any body has info on what size wheels i should run , i want a slick of some sort ,,,backspaceing?????off set???????? thanks guys [/b]

 

[zach5187]

The splines on the output shaft of the trans should be the same and the yoke on the differential end will need to be matched to 9". I believe you are going to have to shorten your driveshaft. Not sure how much though

 

[jrm81bu]

You should really measure once the rear is in to get the right length driveshaft. And if you have enough power and slicks you may want to just get a better one made.

As far as wheel size, a 15x8 with 3.5 backspace and a 28x10 slick seems to be popular.

And if you choose to keep your stock driveshaft and the length will work, there is a u-joint available that will fit your stock shaft and fit the 1350 yoke on the 9".

 

[nycutlass]

no need to cut any drive shaft just use a 4 inch yoke which alot of the 3 rd members have them already i have done the mod with my car already and have done the rear disk setup to it also if you need any detailed info let me know