924Board.org

j03k64 · Joined: 26 Jul 2010 Posts: 123 Location: Urbana, Ohio

We're rebuilding the front suspension on a 1980 Porshe 924 NA. We recently ordered new rear drums, front rotors and front calipers.

The front calipers that we ordered from PartsGeek.com look identical to ours, however, the distance between the mounting points is shorter (88mm VS. 106mm) when measured from outer-most point of the mounting holes using a micrometer). We notified the supplier that they are incompatible and RMA'd the calipers.

What we ordered:
A1 Cardone Brake Caliper - Front Left (Part Number: 94-05232126)
A1 Cardone Brake Caliper - Front Right (Part Number: 94-05232125)

Details and Questions:
Our OEM calipers have a 48mm piston.
We have 4 lug wheels.
Are the OEM calipers considered 'M' type?
Where's a good place to purchase front brake calipers for this application?

RockAuto has these available and look identical to our application, however, the bore size is different at 1.73" (44mm) (I'm assuming they're sleeved from being remanufactured?) Anyone know if these are compatible?

RAYBESTOS Part # FRC3352 {#RC3352} Friction Ready Caliper, Remanufactured; Professional Grade w/Bracket
Front Left http://www.rockauto.com/catalog/moreinfo.php?pk=523827&cc=1263259&jnid=456&jpid=2

RAYBESTOS Part # FRC3351 {#RC3351} Friction Ready Caliper, Remanufactured; Professional Grade
Front Right http://www.rockauto.com/catalog/moreinfo.php?pk=523312&cc=1263259&jnid=456&jpid=3

All the Best,
J03k64

Photos of removed OEM brake calipers:

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1979 Porsche 924
1980 Porsche 924

pcelenta · Joined: 16 Feb 2007 Posts: 546 Location: long island,ny

I would t directly to cardones site and sees at the list. The call them tech desk. They have been very helpful to me in the past and lost quite a few 924 parts. Worse case get a rebuild kit from pelican. They are really very easy to do yourself.

j03k64 · Joined: 26 Jul 2010 Posts: 123 Location: Urbana, Ohio

I would love to replace the seals/rubbers as the overhaul is simple process; unfortunately, the brake piston is corroded =(

We've contacted Parts Geek after RMAing the incorrect calipers using their support ticket system, however, they're difficult to get on the phone to clarify discrepancies on their system.

Has anyone out there know the appropriate replacement part for the front calipers for this application? I understand they're an earlier type of brake caliper and am pretty sure they are identical to my 1979's brake set up as well.
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1979 Porsche 924
1980 Porsche 924

pcelenta · Joined: 16 Feb 2007 Posts: 546 Location: long island,ny

call cardone direct...1-888-280-8324 they know their stuff.

Brockoli · Posted: Tue Mar 03, 2015 6:02 am Post subject:

I got rebuild kits through NAPA autoparts about 8 years ago... not sure if they still have them. They were about $15 per caliper
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'80 924 M471,Wideband O2, Full coilover susp,23/19 sways,Bilstiens,KLA Strut Brace,Roll Bar,Test Pipe,BBS RS, Willwood BBK

25% of a '87 944 Chumpcar http://straightpipe.ca/forums/showthread.php?t=2454

'79 924 Sebring Edition(Sitting)

j03k64 · Joined: 26 Jul 2010 Posts: 123 Location: Urbana, Ohio

Contacted Cardone this afternoon via phone. The tech was very nice, but indicated that they are currently not manufacturing/remanufacturing the calipers.

Photo of the funky caliper piston.

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1979 Porsche 924
1980 Porsche 924

Brockoli · Posted: Tue Mar 03, 2015 8:24 am Post subject:

I'd call partsheaven and have them send some used ones. Then hopefully source a rebuild kit for the rings and rubber boots. (keep fingers crossed the pistons arent corroded)
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'80 924 M471,Wideband O2, Full coilover susp,23/19 sways,Bilstiens,KLA Strut Brace,Roll Bar,Test Pipe,BBS RS, Willwood BBK

25% of a '87 944 Chumpcar http://straightpipe.ca/forums/showthread.php?t=2454

'79 924 Sebring Edition(Sitting)

Fasteddie313 · Joined: 29 Sep 2013 Posts: 2595 Location: MI

http://www.ebay.com/itm/EXCELLENT-PAIR-RESTORED-GENUINE-PORSCHE-924-FRONT-BRAKE-CALIPERS-/360258522054?pt=Motors_Car_Truck_Parts_Accessories&fits=Make%3APorsche%7CModel%3A924&hash=item53e114cbc6&vxp=mtr

maybe?
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80 Turbo - Slightly Modified

j03k64 · Joined: 26 Jul 2010 Posts: 123 Location: Urbana, Ohio

Apparently the correct OEM part numbers for these calipers are as follows. These numbers were rusted into oblivion on ours.

LEFT: 77 615 107
RIGHT: 477 615 108

I'm going to call Reybestos tomorrow morning to ask about the calipers they're providing on rockauto - they look correct in the second photo, but not the first (see the mounting ears). Not sure if it's an optical illusion or not...

Left/Drivers: http://www.rockauto.com/catalog/moreinfo.php?pk=523827&cc=1263259&jnid=431&jpid=2

Right/Passenger: http://www.rockauto.com/catalog/moreinfo.php?pk=523312&cc=1263259&jnid=431&jpid=3

I'm also going to call on the ebay rebuilds tomorrow. Relatively expensive at $87.50/per VS $40-65/per, but at least they appear to be the correct version! Thanks Fasteddie!
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1979 Porsche 924
1980 Porsche 924

Scorpio · Posted: Tue Mar 03, 2015 12:31 pm Post subject:

seals- Fit great
http://store.zeckhausen.com/catalog/index.php?cPath=88_2958_2965_2959

http://www.924board.org/viewtopic.php?t=32564&sid=567ff017a6cb8b5e1069ba039d48e789
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1979 NA
MS1..EFI..
GARRETT T25 TURBO
BILSTEIN SHOCKS
GT BASED CUSTOM BODYKIT

Brisbane , Australia
Think mean think fast
all youll see is
my Porsches Arse!!!

j03k64 · Joined: 26 Jul 2010 Posts: 123 Location: Urbana, Ohio

Called Reybestos tech support. They indicated that both calipers are now obsolete/unavailable.

Called the eBay rebuilder, they were very nice and seemed like they conduct straight up business. Ordered. Came and are absolutely excellent!

The corrosion on the pistons will cause them to leak if you simply rebuild the seals $14.00 for seal/s

It would make life much easier if the pistons were still nice!
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1979 Porsche 924
1980 Porsche 924

Goldwolf · Joined: 25 Jun 2017 Posts: 283 Location: Athens,GA

Another old thread resurrection.

Step one for 91 Passat brakes seems to have passed. The bolt hole measurements are the same as the original post. Will compare to the actual car now.

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1981 Weissach Edition #179

XLR8 · Posted: Sun Mar 20, 2022 11:37 am Post subject:

Goldwolf · Joined: 25 Jun 2017 Posts: 283 Location: Athens,GA

I have another resurrected thread in the performance section.

I ordered Centric brand(PN# 14133030) 1991 Passat calipers yesterday for $36 each from rockauto.

I'm looking for a better performance and a viable replacement. The stock calipers are nowhere to be found and the brake hardware is another cost.
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1981 Weissach Edition #179

gml · Joined: 04 Mar 2021 Posts: 133 Location: Ontario Canada

My calipers were in very rough condition: rusty, seized, bleeder screws broken and rusted. But I gave them to a brake rebuilder near me and they managed to fully restore, rebuild, and powdercoat for about $100 CAD. I guess not as cheap as the Passat calipers but something for people to consider.
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George

1982 924 NA 5-speed