In the Mustang of that year having a 6.75 in. rear end in it you would need 2.5 pints of gear oil. This is 90 wt. oil. If you have a 7.50 in. rear end, you would need 3.5 pints of the 90wt oil.
yes it will
get a posi traction rear end and swap it out.
Yes, it will.
it has an 8.8 rear end with a 3.23 ratio.
Pinto and mustang II integral rear axle
8.8
On end goes to a metal fitting on the axle. he other end goes into a hole in the frame rail. There is a little bracket that screws into the frame rail that holds the hose.
The axle ratio on a 1998 Mustang Cobra is 3.27:1
3.31
Should be 3.27
If its a GT 8.8 If its a base model 7.5