Topic: need rear backing plates

[Bossman963]

Hi looking for both rear backing plates for a 1970 mustang with 10" x 2"  (boss 302)brakes- let me know condition & cost please
thx Mike

[krelboyne]

Probably should specify 10 x 1-3/4 inch or 10 x 2 inch rear brakes. Backing plates are different for those two sizes. Just and FYI. 

[Bossman963]

Scott OK and thanks and I assume its 2" as its for a Boss 302

[krelboyne]

Yes, I agree, 2 inch for a Boss.

They would be normally found on 1969-70 9 inch rear ends from Mustang or Cougars. Backing plates have stamped numbers on them identifying right or left, and the various sizes. Two different suppliers, Bendix and Kelsey-Hayes.
Very likely found on other Ford products with a 9 inch rear. Watch out, in the early 1970's they changed design and those won't be compatible.

Below is a cut and paste from Dan at Chocostang
K/H Plates 65-68 Dates are not perfect for 1 3/4"---Numbers are.

70867
70866

K/H for 2"

71086
71087





Bendix Plates 69 and newer for 1 3/4"

319480
319481

Bendix for 2"

317558
317559

[Bossman963]

thank you for info and my car was built in 10/69

[Bob Gaines]

FYI many times I have seen a Bendix on one side and a KH on the other. They weren't always installed in pairs.Mostly on 69 Dearborn.