you have a 7.5 or 8.8 rearend? I have an 83 GT and i have 4.10 gears for an 8.8, but i dont know if i have an 8.8... Im told they look exactly the same so i was just wondering before i go to the shop and embarass myself.

 

There should be a tag on the diff cover that will tell you.

 

should be labled or in the owners manual. if it is a 7.5, get a used 8.8 and have both installed at the same time and enjoy the 4:10! make sure you have the bearings and seals kit![sm=trust_me.gif]

 

measure it[&:]