brake urgent question
Thread Starter
Team Owner
Joined: Nov 2004
Posts: 20,709
Likes: 25
From: Sorrento Italy
brake urgent question
hi all, i have a brand new brake kit of willwood caliper (and rotor) for the front of my '77 C3 and willwood caliper for the rear BUT as the front rotor is still as new and the rear one is pretty tired..could i use the front rotor which come on the kit for the rear? both are oem 11.75'', is there any reason i wouldnt be able to fix this front rotor to the rear, they look the very same thing to my eyes... 
all advices will be very welcome as i'm fixing the kit right now, thanks.
all advices will be very welcome as i'm fixing the kit right now, thanks.
Thread Starter
Team Owner
Joined: Nov 2004
Posts: 20,709
Likes: 25
From: Sorrento Italy
Originally Posted by SteveG75
No, rotors are different. Rear rotor is set up for the parking brake.
thanks for your cooperation..
Race Director
Joined: Jun 2000
Posts: 10,040
Likes: 672
From: FL
Originally Posted by panic
steve, could i custom fix the front rotor at the rear at all? pardon me but if the measures are the same i do not see any big trouble in adapting it, maybe apart from not beeing able to fix the parking brake??
thanks for your cooperation..
thanks for your cooperation..
IMHO, brakes are one area that it is not worth taking short cuts on. You are talking about putting your life in jeopardy if you can't stop the car. Seems stupid to try and pinch pennies here.
Thread Starter
Team Owner
Joined: Nov 2004
Posts: 20,709
Likes: 25
From: Sorrento Italy
Originally Posted by SteveG75
Personally, I don't know of anyone who has done it. There are a lot of dimensions involved and if you are out one little bit, your brakes may work poorly or not at all.
IMHO, brakes are one area that it is not worth taking short cuts on. You are talking about putting your life in jeopardy if you can't stop the car. Seems stupid to try and pinch pennies here.
IMHO, brakes are one area that it is not worth taking short cuts on. You are talking about putting your life in jeopardy if you can't stop the car. Seems stupid to try and pinch pennies here.
Former Vendor
Joined: Nov 2005
Posts: 683
Likes: 1
From: Mounds View Minnesota
I've never measured it myself, but I understand that the offsets are slightly different front to back. This could make the rotor not in the center of the caliper. It should be in the center within .020" or so.
Other than the parking brake, there is no reason not to be able to swap front to rear.
Other than the parking brake, there is no reason not to be able to swap front to rear.
Thread Starter
Team Owner
Joined: Nov 2004
Posts: 20,709
Likes: 25
From: Sorrento Italy
hi, believe it or not last night i've tried to fix a front new rotor in the rear of my '77 and it went streight trough in 
, the inside of the rotor was machined exactly to fix the parking brake, also the only difference i've noticed between front and rear rotors is that the rear one has the internal wall 1 mm higher then the front one but anyway the parking brake surface gets within the internal touching area all right...maybe precision brake co. sent me a rear instead of a front kit? 
, the inside of the rotor was machined exactly to fix the parking brake, also the only difference i've noticed between front and rear rotors is that the rear one has the internal wall 1 mm higher then the front one but anyway the parking brake surface gets within the internal touching area all right...maybe precision brake co. sent me a rear instead of a front kit?
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Thread Starter
Team Owner
Joined: Nov 2004
Posts: 20,709
Likes: 25
From: Sorrento Italy
Originally Posted by kb2fzq
Ahhhh...I don't think that happened....
Race Director
Joined: Sep 2004
Posts: 11,874
Likes: 263
From: Arlington Va Current ride 04 vert, previous vettes: 69 vert, 77 resto mod
the front and rear rotors are different and they are not interchangable...the hub thickness is different
Last edited by bobs77vet; Dec 29, 2005 at 01:23 PM.