bigfosty2

The 9 bolt in my car want BOOM. I got a parts car, a 1990 RS with a ten bolt. The 10 bolt has drum brakes, can I swap the disc brakes from my 9 bolt onto the 10 bolt? With my luck I am guessing not, but I'm holding out a slim piece of hope. If not, what are my other options on getting some disc brakes? Thanks for any help.

urbanhunter44

iTrader: (3)

don't see why not, people upgrade their brakes all the time. I've never done it though on a thirdgen so I'm not too familiar with the differences in the two setups so I'm not the one too ask.

Cadillac

Oh man... you know I hate to hear about 9 bolts "going boom".

Jeremy_84_F41

iTrader: (3)

If your discs are the PBR aluminum caliper style (should be, since your car is an '88), then all you need are 10-bolt caliper mounting plates from an 88-92 car. Last I checked they were still available through dealerships pretty cheap (they are just stamped steel). You will need to modify the flanges on the axle housing by sawing part of them off (you need to make them a square, so you cut off the top triangular part) and drilling two holes on each side using the new backing plate as a template. Then you need to transfer your brake lines, and bleed the system, and that's it.

So yes, you can.

bigfosty2

Would you say that it's worth doing? Changing the brake lines and everything sounds like quite the PITA. But I've never done it before so what do I know. Thanks for the help.

bigfosty2

If it makes you feel any better it actually went, CLANG!

Daniel U

If you don't mind me asking, what were you doing when it went clang? How many miles? Is your motor stock? Just curious as my IROC has a 9 bolt and rolled over 225k and is fairly mild.

bigfosty2

I was leaving a parking lot, gave it about half throttle as I was turning right. It has about a 150k with a stock 350. I've done quite a few burnouts in my time, but still wasn't expecting this. There had been no previous noises, so clanks, rattles, or humming. So it was quite unexpected.

porkyzilla

iTrader: (1)

its better and easier to just get a replacement 9 bolt or 10 bolt already setup for disc brakes

Kevin91Z

iTrader: (1)

Isnt there a tech article or a thread in the Brake board on how to change drum brakes to disc brakes?

Cadillac

And a kit to match from Ed Miller:

Hassle Free drum to disks

I love my brakes from Ed. With the addition of the rear disks next week, should drive like a whole new car.

bigfosty2

Thanks for the link, just pm'ed him.