Rear Disc Brake Conversion - Chevelle Tech
Brakes, Suspension & Steering Conversion questions & more.

 
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post #1 of 3 (permalink) Old Jul 31st, 19, 3:46 PM Thread Starter
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kevin
 
Join Date: Sep 2008
Location: Smiths Station, Alabama
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Rear Disc Brake Conversion

Back again with another thread regarding my right stuff rear disc conversion. Have been "fighting" with this deal since installation. If anyone has installed this kit on a 12 bolt did you use any shims on the mounting plate? Starting to think I should have but it appeared that they worked sans shims when initially installed. Since the pads have literally burned down now it looks like I may need shims...just about ready to scrap them and go back with the drums on back...
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post #2 of 3 (permalink) Old Aug 5th, 19, 2:06 AM
Jason
 
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Re: Rear Disc Brake Conversion

I installed one of these kits on my 12 bolt I just built. Mine's probably different than yours because I'm running Moser axles which apparently have a thicker wheel flange than the stock axles have. I actually had to take my caliper brackets to a machine shop to have .250 inch milled off the mounting flange so the calipers would be centered on the rotors. Make sure you're putting your caliper brackets on the inside of the mounting flange not the outside like the drum brake backing plate was located.
I actually called right stuff detailing before I milled the brackets and told them the calipers would not line up and they said their kit was designed for stock axles only.
I doubt this helped you but hopefully it did!!

Jason Marshall
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post #3 of 3 (permalink) Old Aug 5th, 19, 8:51 PM
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Beth
 
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Re: Rear Disc Brake Conversion

Quote:
Originally Posted by Firemechdrjay View Post
I installed one of these kits on my 12 bolt I just built. Mine's probably different than yours because I'm running Moser axles which apparently have a thicker wheel flange than the stock axles have. I actually had to take my caliper brackets to a machine shop to have .250 inch milled off the mounting flange so the calipers would be centered on the rotors. Make sure you're putting your caliper brackets on the inside of the mounting flange not the outside like the drum brake backing plate was located.
I actually called right stuff detailing before I milled the brackets and told them the calipers would not line up and they said their kit was designed for stock axles only.
I doubt this helped you but hopefully it did!!
Yes, different rear end setups will need different solutions.

My Strange S60 rear needed a washer added to the caliper mounting flange to move the rear calipers inside toward the center of the car.

The calipers must be centered on the rotors to get good brake pad life.

67 Chevelle convertible, 138 vin, original 4 speed, bucket seats, 12 bolt, Marina Blue with black interior
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