Tech Talk & Articles > GM Cars
Rear Disc Brake Conversion Kit - 1977 Transam
sms777:
Larger braking surface which will give you firmer pedal feel and longer life. I am sure the biggest option drum brakes will still fit inside 15" wheels but bonnevista would know better.
bonnevista:
One of our forum members, LeighP went this route with his '71 Firebird. As far as I'm aware, he was very happy with it. I think it's bought as a kit and basically uses rear brakes from a full size car. Another advantage of staying with the drum rear would be having no dramas with your parking brake.
Sent Leigh a message, I'm sure he'll get back to you.
LeighP:
Yeah, I used a Master Power Brakes kit that fits new B body Police(HD) finned drums onto the back of my 71.
Simple bolt on mod that leaves you with working Park brake and will fit 15" wheels.
The drums come as a unit with backing plates and brakes etc.....everything brand new. Classic Industries is a reseller of these and I scored a good deal when Classic's were having a sale.
This shows 15" Rally wheels.....they clear.
bluvelle:
I went with Chevy C10 drums on the back of the Chevelle. I found the bigger drums work really well & the park brake holds good.
Fits inside a standard 15" wheel. I think the drums are 11" Looks pretty similar to what Leigh has in the pics.
1977 Transam:
Thanks for the info on the drum brakes guys.
Leigh were yours 11 inch drums as well please?
I was looking at these yesterday from Willwood. Waiting to hear back from them about whether they would fit in my rims.
http://www.wilwood.com/BrakeKits/BrakeKitsProdRear.aspx?itemno=140-11397-DR
Curious about drums now. Would they have the same stopping power as the Willwoods?
I'm assuming that the discs would be lighter and stay a lot cooler during operation.
Still learning about the differences though.
Tommy
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