Price check. How much for M caliper + e-brake conv. Options

[Richard Casto]

I am trying to determine what fair market value for the following is…

* Pair of used rear 911 M-calipers. Is there a price difference for the early (with knock-back) and later (no knock-back and cup pistons)?

* Pair of used parking brake backing plates and associated hardware from a 70-73 911. I believe the 70-73 is the proper year range so that the mounting holes match the 914 trailing arm.

Condition? I am looking for working, but ready for rebuild/refresh. Basically what you might find if pulled from a running but tired 911.

As you can guess, I am looking to do an M caliper and 911 e-brake conversion on the rear of my car. I already have sourced A-calipers for the front.

[charliew]

One of the places I got the 944 shoes, hardware and angle spreaders with the early 911 backing plates was 20th st Auto Parts (602) 258-2020
www.20car.com

Also Brad says that the early boxter also uses the 914 bearing so the bearing retainer is the same and has the backing plate and also the angle spreader assy all in one but the picture seems to show the shoes are narrower, it could just be the picture.

I haven't started fabbing it yet but it seems like a piece of 3/16 or 1/4 wall x 1.25 or 1.5 angle cut down with a hole in the center for the spreader arm to protrude through thats 40mm wide welded on the bearing carrier would do the trick.
There is a picture of the boxter eb assy. on a thread that Brad has on the club. I have some 944 bananna arms that I can copy. The 40mm lug is part of the aluminum bearing housing.

Actually you can use the early 911 brake parts and cut little notches in the shoes and use the angle spreaders. The same spreaders also are used on bmw's.