I bought a 9" Moser rear for my car. I also got the wilwood disc brakes with parking brake. Im debating on whether or not I want to return the brakes because they cost 675. Im thinking of just gettting decent disc brakes and putting that money into something else.

 

You can adapt the GM brakes to fit. It's not that hard.

 

I have a 9bolt borw warner rear and nothing from it will fit. Thats why Im thinking of going with other brakes.

 

Not even close to true.

Which style brakes do you have? The iron calipers (82-88) or aluminum calipers (89-92)?

I have these on my 9":

 

I have the Iron caliper rear discs on my 9".

 

Either will work, but I've personally put the 89+ ones on MY rear. 9-bolt or not, it will work.

Personally I used the 10-bolt backing plates which are still available from GM brand new, but I know at least one person used the 9-bolt ones.

 

Wow your kidding me!! They told me I couldnt use my brakes. I have the iron ones with the disc brakes. How can I make these work?? Will my rotors, calipers, pads and parking brake all work? Im really interested because Im starting the rear today and I have all the parts in my garage now. Do I need to do anything to make them fit or will they bolt on. That will be an extra $675 in my pocket for other mods. Thanks for replies.

 

Yeah, they told me it wouldn't fit as well. As you can see, it's been done.

I'd suggest you contact the guy who's personally put them on his, but as a guess you'll need to do the following:

1) Overbore the hole in the center of the backing plate to allow the axle bearing to pass through.
2) Redrill the bolt pattern on the backing plate to match the ford drum pattern on the axle. I used a piece of paper on the axle housing to make the template and then used a drill press to drill the holes

Make SURE when you install the brakes, you orient them so the bleeder screw is at the highest point (or you'll never get them bled). On my PBRs, the new bolt holes I'd have had to drill to do that, overlapped the stock holes--so I simply switched the left and right bracket (not the calipers), then the holes didn't overlap.

You shouldn't have to modify anything else. The backing plates are the only issue that I know of. I'm using STOCK GM hardware for ALL of my rear brake stuff.