Need help identifying these calipers

[pancake]

hello experts, I am hoping someone can help me identify what these calipers came off of. I have a set of rear 964 trailing arms with the brakes intact and the rears in the picture are identical to the 964 calipers if that helps any. these calipers came as a set and came with the adapter shown. the adapter doesn't have any part numbers or markings at all, they bolt directly to a standard 911 strut with the 3 1/2" bolt spacing. they have what I assume is a date code in the casting next to what I think is maybe the Brembo part number. the date code is 93. the part number on the rears is: 20.4673.00/20.4672.00 (it looks like it could also be20.4873.00/20.4872.00). the front numbers are: 20.4565.00/20.4564.00. I want to use these on my 914-6 conversion project and therefore am trying to come up with pieces and parts. any ideas??? thanks guys. the fronts will fit on a 32mm wide rotor and the rears fit on a 24mm wide rotor.

[pancake]

ok, I tried to attach a photo but obviously didn't work, any input on how to make that work?

[pancake]

[964TargaC2]

I cant help you except to tell you that Bill Verburg will eventually see this post and will know exactly what you have, he is the resident Brake expert

[Bill Verburg]

Originally Posted by pancake

W/o seeing the mounts and a side view I'd guess that those are 993 f/r

[pancake]

I thought both f/r 993 calipers were radial mount like the fronts I have here, these rears are an axial mount. did 993's use this type of rear? what is the aluminum adapter for? it doesn't fit the rears but it fits the fronts and bolts directly to the 911 front strut. are these factory pieces that you've ever seen? I can take a picture from any angle if that helps. thanks again.

[pancake]

also, can I buy brake lines from pelican to adapt these to my 914 chassis?

[Bill Verburg]

Originally Posted by pancake

I thought both f/r 993 calipers were radial mount like the fronts I have here, these rears are an axial mount. did 993's use this type of rear? what is the aluminum adapter for? it doesn't fit the rears but it fits the fronts and bolts directly to the 911 front strut. are these factory pieces that you've ever seen? I can take a picture from any angle if that helps. thanks again.

993 f are radial mount 993 rear are axial as are those, 993 didn't use caliper adapters oe but if they were mounted else where like on a 911 or 964 caliper adapters would be necessary

To determine for sure I need a side shot as seen from the street and from the chassis,

the rears you will need to look at the pistons 28/30 is 964 rear 30/34 is 993 rear

Other calipers are long shots but possible, he most likely source was 993.

They can be adapted to 911, I have never done a 914 but if 911 strut w 3.5" ears is used on the 914 then that part is good to go, the rear depends on the mounts, a 911 has 3" mounts and the 993 can be adapted to those w/ the 309x28 mm 930 rear rotor, don't know how feasible that is for a 914

[pancake]

Bill, can you tell me what the size difference is between these fronts and the big red fronts? I think I saw in one of your posts that they use the same pad. specifically, is the distance from the centerline of the caliper (the centerline of rotor) to the centerline of the mounting hole the same on both calipers?

[Bill Verburg]

Originally Posted by pancake

Bill, can you tell me what the size difference is between these fronts and the big red fronts? I think I saw in one of your posts that they use the same pad. specifically, is the distance from the centerline of the caliper (the centerline of rotor) to the centerline of the mounting hole the same on both calipers?

993, 964RS, 928S4, 993RS rear, 964 3.3t


993tt, 993RS, 928GTS, 993Cup, 993RSR, 964 3.6t