We have a race car with Mustang II front rotors. The are 5 x 4.75 bolt pattern 9.?? diameter rotor. I nor the local auto parts people can find this rotor or part# in there computers. I did find them thru speedway motors but wanted to get them local. The speedway # is 910-31002.They however can't cross reference it, or give me an OEM #. Any one run these, I thought this was a common rotor unless everybody gets them from Speedway!

According to speedway they are 74-'78 Mustang II or '74-'80 Pinto/Bobcat

these all pull up as 4 lug not 5. I was hopeing some of the ford folks could just rattle off a part#.

I’m not aware of any 5 lug 4 3/4 bolt pattern rotors ever made by ford for that application. All pintos and mustang2 were 4 lug afaik. The 5 lug setup is an aftermarket conversion. Maybe, maybe a ford ranger rotor might fit the spindle but I’m pretty sure it’s not a 4 3/4 lug pattern.

5 lug ford rotors are 5x4.5 gm are 5x4.75 you’re going to have to get them from speedway or summit or speed shop nothing Orem is going to work

If you’re wheels are dual bolt pattern you might be able to find like a Granada rotor that might fit spindle

If you found rotor of same diameter and offset it would seem drilling them to match pattern pretty easy. Lay one on top of other with centers lined up,clamoe with cpl clamps and drill. I will check set I haee in building that we used on my 66 Nova. To best of memory they where off Pinto and used Fierro calipers, made for cheap front disc brakes and lite weight.

same ones on my roadster, only place to get them is speedway.


Joe

better set-up is the option from afco-
11" fairmont rotors with both bolt patern and brackets to use GM metric calipers.
way better.