5 lug conversion. Fitting rims???

[PQTIII]

I have a 1989 that someone converted to a 5 lug setup. I want to buy some rims for slicks. If this is a setup from a newercar, is the rear end width the same as original. I want to go with the widest rim without doing a lot of remodeling.

I have a new set of Weld 15X8 with 5.5 offset, but was thinking about going with 15X10 with 6.5 offset.

Thanks
pt

 

[Mustang5L5]

Need to know what brakes are on the car to give you a good answer. Post pics. There are a few different brake setups that will give you 5-lug, so hard to say what rims you can use without knowing that

 

[PQTIII]

 

[Mustang5L5]

Sn95 rear disks....94-98 it looks.

They are 0.75" wider each side as compared to standard Fox offset. You will need some deep backspacing if you want to run 10"

 

[PQTIII]

So the wheel in the last picture is probably as good as it's going to get??? 15x8 with 5.5 bs.