Determining the Differential you have?
05-31-2006, 05:09 PM
#4
2nd Gear Member
Join Date: Oct 2005
Posts: 223
RE: Determining the Differential you have?
his is an 83... i bet you have a 7.5 . The 7.5 has 10 bolts as does the 8.8 on the diff cover. The 7.5 however has five bolts above the center and five below. The 8.8 has 4 above the center, four below the center, and 2 right on the center.
8.8 diff gasket
http://images.google.com/images?q=tb...d88pattern.jpg
7.5 diff gasket
http://images.google.com/images?q=tb...d75pattern.jpg
8.8 diff gasket
http://images.google.com/images?q=tb...d88pattern.jpg
7.5 diff gasket
http://images.google.com/images?q=tb...d75pattern.jpg
05-31-2006, 10:01 PM
#7
2nd Gear Member
Thread Starter
Join Date: May 2006
Location:
Posts: 155
RE: Determining the Differential you have?
Yes, I verified just a minute ago that it is a 7.5. So my next question is this: I would like to gear up to a 3.73 someday soon. Is this a good idea in a 7.5? Or, how hard would it be to swap the 7.5 for an 8.8?
05-31-2006, 10:50 PM
#8
3rd Gear Member
Join Date: Jan 2006
Location:
Posts: 835
RE: Determining the Differential you have?
A 3.73 swap is not a bad idea. The 7.5 to 8.8 swap I think is a direct swap but not certain hopefully somone else will chime in to verify or disprove the info I have given.
05-31-2006, 10:54 PM
#9
1st Gear Member
Join Date: Feb 2006
Posts: 52
RE: Determining the Differential you have?
yes the 8.8 is a direct swap, i did it on my 86 when i converted from 4 cylinder to v8. direct bolt on, if you have the 7.5 inch rear end the suspension is probably different so id get shocks and springs from a v8 as well