help with caliper hardware kit - wrong seal?

[cjarvis]

Hey guys...
I have a problem with the caliper hardware kit I picked up for a 71 F-250 CS. The problem is the OD of the inboard seal is too big to fit in its bore. The OD on the seal is about .810". The ID on the bore is about .695". A little more background is, the PO did brakes on the truck this past summer. I was hearing a rattle when going over bumps that I believe is the calipers rattling on their mounts. I pulled one off and saw the PO did not replace all the hardware when he did the brakes. So I figured the hardware kit is what I need to take the slop and the rattle out.

Here is a pic of the parts from the kit, the inboard seal is on the left.
http://picasaweb.google.com/cjarvis99/S ... 5466048034

Here is a pic of the bore where it belongs:
http://picasaweb.google.com/cjarvis99/S ... 8904768354

Pretty sure these are original/stock brakes, but here is a pic just in case:
http://picasaweb.google.com/cjarvis99/S ... 9112571394

I looked at the parts diagrams here ( http://www.fordification.com/tech/image ... scF250.jpg )and there are two for front disk brakes (before or after serial # m80,001). My serial # is before (L80,934) but the part number for the hardware is the same in both diagrams, 2B301.

And finally, this is the hardware kit I bought: http://www.napaonline.com/Search/Detail ... 192521222&

So do I have the right inboard seal and am missing something obvious? Or do I have the wrong part?

Any help appreciated!

Craig in MI

[fordman]

fireguy ran into the same problem. i think he modified the seal to fit. i think . maybe he got another one i dont remember what he did .

[70_F100]

2B301 is just the base part number.

C8TZ 2B301-A fits trucks BEFORE S/N M80,001

D2TZ 2B301-A fits trucks FROM S/N M80,001

Based on what I could find on the NAPA website, I believe you must have the equivalent of the D2TZ kit, which was probably used in other trucks AFTER 72, and that's why it's available from NAPA (spans a bigger time frame).

[FORDification]

I was just getting ready to say the same thing...wasn't quick enough with the keyboard.

[fireguywtc]

Hello Craig, I did have a similar problem as you and it was very frustrating to figure out my problem. However I think you might be having the same problem as me. Apperantly there are 2 different types of bushings/seal that are used on these calipers for the slide pins. One kind has a face to hold the rubber part in and the other does not, just a metal sleeve with the rubber inside. My problem was the rust had made the old bushings that did not have the "face" one with the claiper mounts. So as I was trying to stick my new ones in there, they wouldn't fit. I finally ended up frustrated enough and decided to drill them out to fit. When I did I was surprised with the drill removed the old rusted in sleeve. The second one I was able to remove with a bladed screw drive and hammer.

Here is my thread for the problem and let me know if you have any questions. I hope this is your problem. http://www.fordification.com/forum/view ... it=+brakes

[FORDification]

whoops! I just noticed that the numbers posted by '70_F100' above are for the entire caliper support assembly. The caliper support repair kit is the same for all '68-'72 F250 trucks. The number for just the support repair kit is:

BRAKE CALIPER SUPPORT REPAIR KIT (For 2B301)
C8TZ-2120-B

The following dealers have this in stock:

Bob Allen Ford Inc.
Overland Park, KS 66212
(913) 381-3000
(5 in stock)

MORLAN SHELL FORD TOYOTA
WEST PLAINS, MO 65775
(417) 256-3195
(2 in stock)

PARTS INTERNATIONAL
FARMERS BRANCH, TX 75234
(888) 727-0418
(18 in stock)

ANTIQUE AUTO SUPPLY
ARLINGTON, TX 76015
(817) 275-2381
(3 in stock)

GREEN SALES
CINCINNATI, OH 45237
(800) 543-4959
(26 in stock)

JST AUTOMOTIVE
LEBANON, TN 37087
(615) 443-3086
(1 in stock)

SANDERSON FORD
GLENDALE, AZ 85301
(623) 842-8762
(4 in stock)

ED BENNETT FORD PARTS
LEBANON, PA 17042
(717) 272-8762
(1 in stock)

MILLER OBSOLETE PARTS
BINGHAMTON, NY 13905
(607) 722-5371
(10 in stock)

MANDERBACH FORD
TEMPLE, PA 19560
(610) 929-3659
(2 in stock)

[fordman]

how is everyone looking these numbers up ? im sorry i mean how are you finding out who has these part numbers in stock? surely you dotn visit every single web site and look them up individually.

[FORDification]

how is everyone looking these numbers up ? im sorry i mean how are you finding out who has these part numbers in stock? surely you dotn visit every single web site and look them up individually.

The part numbers themselves come from the Ford Truck Master Parts Catalog.

However, since many part numbers in the MPC have been superseded with a new number or a part has been replaced by a different one for service purposes, you really need to look up the MPC number in the O.S.I. catalogs, which list all parts/numbers which have been superseded or declared obsolete.

Then, armed with the correct number, you can go to an online parts locator service like PartsVoice.com to see who's got it in stock. Registration is free and so are the searches. However, this isn't all-inclusive either...only a small percentage (20%?) of the Ford dealers are included there, but a lot of NOS dealers have their stuff listed, so it's a good first step. Just be sure to remove the hyphens from the Ford part number when doing a search.

[70_F100]

Keith, where can I find the O.S.I. catalogs?

[cjarvis]

Thanks guys for the help! Looks like the shell from the original seal is still in the bore and has to be drilled out. I cheated for now and removed the new shell from the rubber seal and installed the rubber seal in the old shell. Used an open end 13mm wrench to hold the seal in as the pin was pushed through. We'll see ho long it stays. I'll be ready to it right when it comes out. But anyway, the rattle is gone, just a solid thump as you go over bumps! Its amazing how well this truck drives!
Thanks again fro the advise..
Craig in MI

[FORDification]

Keith, where can I find the O.S.I. catalogs?

I suppose you can start with E-bay...there are a couple listed there. But these were updated every 6 months or so (with the subsequent catalog getting larger) until the end of a decade, when all changes were included over the decade in a single large catalog. So just randomly buying OSI catalogs won't do you a lot of good, and IMO is a waste of money. (I say this from experience, because this is exactly how I got started. I now have a bunch of OSI catalogs that I bought which were also covered in the next update, so they're no longer needed.) To put it simply, there are dozens of OSI catalogs printed over the years, but you only need about a half-dozen with a certain year range span to get complete coverage.

This subject is getting way OT for this thread, and would actually be a pretty good topic for a new thread. Give me a couple days and I'll try to put something together which will help you understand all this as I understand things. (It's actually pretty complicated.)

[70_F100]

I doubt it's any more complicated than the GM or AMC superceded parts lists, as they had updates about quarterly.

But you're probably right about making another thread.