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Old 07-27-2008, 01:47 AM
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Need Custom Rotors for a Chevelle....but....

I need a '69-'72 GM A-Body 11" rotors but with 6x5.5" lug pattern. Anyone know where I can get these?

I have a '69 C10 that I bought a disc brake bracket kit for but didn't read the fine print that they require Chevelle rotors. I already have my wheels and do not want to buy another set nor do I want to change my rear to 5 lug either.

Please do not make suggestions like 'get another kit', etc. If you don't have a source for custom rotors, thanks for reading and move on.

Thank you in advance for reading.

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Old 07-27-2008, 06:55 AM
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I had a Monza some years back and it had 4 lug wheels. I swapped rear ends and it had 5 lugs. So I took the front rotors to a machine shop and had them redrill a 5 lug pattern into the 4 lug rotors. Maybe you could do the same with the Chevelle rotors. An automotive machine shop probably can not do this but most any job shop could. A machine shop were they make parts.
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Old 07-27-2008, 07:47 AM
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Quote:
Originally Posted by Ford_Assassin
I need a '69-'72 GM A-Body 11" rotors but with 6x5.5" lug pattern. Anyone know where I can get these?

I have a '69 C10 that I bought a disc brake bracket kit for but didn't read the fine print that they require Chevelle rotors. I already have my wheels and do not want to buy another set nor do I want to change my rear to 5 lug either.

Please do not make suggestions like 'get another kit', etc. If you don't have a source for custom rotors, thanks for reading and move on.

Thank you in advance for reading.
Does this kit use the stock spindles for a C10? If so, I don't know how Chevelle rotors do anything for you. First problem is that your spindle requires an inner bearing with a 1.375" I.D. and an outer bearing with either a 0.750" or a 0.8437" I.D. outer bearing, depending on which suspension you have. The A-body rotors have an inner bearing with a 1.2500" ID. and an outer bearing with a 0.750" I.D. Unless your kit comes with custom bearings, the rotors won't physically fit on the spindles.

Having said that, there are no A-body rotors that I'm aware of with six lugs. Period. Your options would be either having a set redrilled or using composite rotors from a racing supplier like Speedway motors.
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Old 07-27-2008, 08:54 AM
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If your front wheels would not end up being too wide,put the chevelle rotors and buy some adapters.Also if you could give us more info like was asked earlier maybe we could help more.
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Old 07-27-2008, 03:06 PM
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This is the kit I bought:

http://www.performanceonline.com/sto...e.php?cat=1079
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Old 07-27-2008, 03:20 PM
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Find out the diameter and thickness of the rotors they recommend.Then check the newer Chevy trucks with 6 lugs and see if the dimensions are the same. If so take the drums off of your factory hubs and use the new rotors that slip on the hub with the new calipers and bracket that came in the kit.
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Old 07-28-2008, 04:39 PM
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Quote:
Originally Posted by speedydeedy
Find out the diameter and thickness of the rotors they recommend.Then check the newer Chevy trucks with 6 lugs and see if the dimensions are the same. If so take the drums off of your factory hubs and use the new rotors that slip on the hub with the new calipers and bracket that came in the kit.
Unfortunately, most new rotors are one-piece.

Quote:
Originally Posted by Ford_Assassin
The good news is that it looks like the kit does come with inner bearings.
Unfortunately, I'm not sure what part of 1963-70 CHEVY TRUCK, DISC BRAKE CONVERSION KIT, 5-LUG was not clear. Sorry, but there are no six lug Chevelle-compatible rotors. The six lug rotors are bigger because the truck is heavier than a Chevelle. Frankly, the 10.75" rotors are marginal on a Chevelle. The truck is probably 1,000 lb heavier even when it's empty.
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Old 07-28-2008, 05:19 PM
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I bought 1 piece rotors for my son in law's truck and machined out the middle to make rear disc brakes on his 65 Chevy truck.I am not sure but with a little research I bet there is at least 1 year were Chevy had removable 6 lug rotors on the front or rear.Somebody out there must have fooled with a newer truck to know the answer.
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Old 07-28-2008, 07:02 PM
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Quote:
Originally Posted by speedydeedy
I bought 1 piece rotors for my son in law's truck and machined out the middle to make rear disc brakes on his 65 Chevy truck.I am not sure but with a little research I bet there is at least 1 year were Chevy had removable 6 lug rotors on the front or rear.Somebody out there must have fooled with a newer truck to know the answer.
Good idea but the problem is that the brackets in the kit are designed to clear the 10.75" A-body (Chevelle) rotors. The six lug rotors with the 5.5" bolt circle are 12" diameter and won't work with these brackets. You can get existing six lug rotors that fit right on the original spindles. The problem is the brackets. As I said in my last post, I personally think the smaller rotors are undersize for this truck anyway. There's a reason why this kit as advertised as a low-cost kit.

By the time you finish custom machining the ID and the OD of the six lug rotors, you might as well throw away this kit and buy the right one.
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Old 07-28-2008, 08:20 PM
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Quote:
Originally Posted by joe_padavano
Good idea but the problem is that the brackets in the kit are designed to clear the 10.75" A-body (Chevelle) rotors. The six lug rotors with the 5.5" bolt circle are 12" diameter and won't work with these brackets. You can get existing six lug rotors that fit right on the original spindles. The problem is the brackets. As I said in my last post, I personally think the smaller rotors are undersize for this truck anyway. There's a reason why this kit as advertised as a low-cost kit.

By the time you finish custom machining the ID and the OD of the six lug rotors, you might as well throw away this kit and buy the right one.
I agree,but did not know the dimensions and I do my own machine work.Sorry I can't help but I tried.I think the biggest problem is most people want to go to the 5 lug and he wants to keep the 6.
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