Pictures of RPO 684 Brake Shoes?

[Jake M.]

I'm looking for details on the brake shoes that would have came with the RPO 684 package.

Based on page 13: https://www.gmheritagecenter.com/doc...t-Corvette.pdf

The fronts would have been 2 1/2" and rears 2" with Ceremetalix pads...can anyone confirm? What was the configuration of the pucks? 57-58 with 2 (4 segments) on primary and 4 (8 segments) on secondary? 59 with 3 (6 segments) primary and 5 (10 segments) secondary?


In 1960 with the change to RPO 687, many of the components that made up RPO 684 became std factory and the brake shoe configuration changed. Confirming that it went to 2 1/2" fronts and 1 3/4" rears with metallic pucks.

Love to see pictures of correct Ceremetalix '57-'58, '59, '60-62 HD shoes.

[David B.]

Re: Pictures of RPO 684 Brake Shoes?

Have photos of 2 1/2" & 2" ceramatallic brake shoes both NOS and on car but not smart enough to post. For your research information they were developed and first introduced in 1956 during testing for Sebring. Give credit for their introduction to Frank Burrell per Aviation Division of the Bendix Corporation.