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.

[Richard Casto]

Thanks everyone for your help. I also talked to Eric via email and he helped as well. Between this thread and Eric's email I think I have a better idea on what it's going to cost.

[Wes V]

Richard;

Here are my two cents;


It's not really possible to quote a fair price for most of this stuff. It's just old crap to some people and rare collecters items to others.

The condition of the items also varies a lot!! (I got my rear M calipers pretty much for free, and boy did that ever cost me!!!)

Then there is the problem that you are not buying a "complete" anything, but a collection of parts off of various cars.

What you have to do is just have a dollar amount in mind and then watch the net for stuff. Have money handy if something comes up.



I rebuilt my 911 rear M calipers and sourcing the correct parts can be difficult! I've gotten to know Dennis at Zim's real well. (don't talk to anybody else at Zim's!!! If he is on vacation for a month, just call back when he returns.)

You can get the o-rings from Pelican Parts, but you have to tell them the part number. If you don't tell them the number, they will tell you that they are not available and don't have them. Strange but true. The part number is; 901-351-928-10.

Buy the seal kit from Zim's and have all the dimensions for the pistons on hand. Both the diameter of the main piston area and also the diameter of the piston where the outer seal is in contact. (don't order them from Pelican) Don't assume that all four pistons (for both calipers) are the same!

Think about saving your self a lot of head-aches and just send them to Eric Shea.

I've seen the threads about using the "angle pull" e-brake set-up and think it's a good concept. However I don't think anybody has worked up a good solution to that 40mm spacer / backing plate that is required. That item not only is a spacer, it's also a backing plate for the spreaders!! (at least, nothing complete has been posted up that I've seen) If I hadn't already worked up my solution, I'd be working on that method.

Wes Vann