Author Topic: Rear Disc Brake Conversion Kit - 1977 Transam  (Read 31395 times)

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1977 Transam

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Rear Disc Brake Conversion Kit - 1977 Transam
« on: March 03, 2015, 11:05:31 AM »
Hi everyone.

Hoping someone knows where I can get a disc brake conversion kit for a 1977 Transam thanks.

I tried sizing up a Baer Brake kit with 12 inch disc and 4 piston setup but it won't fit the snowflake 15 inch rims.

Any help would be appreciated.

I don't want to change to a low profile rim though to upgrade the brakes.

Need a handbrake allocation in it as well though.

Thanks.

Tommy

sms777

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Re: Rear Disc Brake Conversion Kit - 1977 Transam
« Reply #1 on: March 03, 2015, 04:52:58 PM »
Try this company...www.p-s-t.com. On the home page up the top corner type in this part number: DBKRAFXRD07.
Looks pretty comprehensive.
Good luck.

Phone 02 9793 3332
Biggles, The Flying Mechanic

1977 Transam

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Re: Rear Disc Brake Conversion Kit - 1977 Transam
« Reply #2 on: March 03, 2015, 06:39:08 PM »
Thanks Chris.   I'll have a chat to them and see if they will work with the original rims.

bonnevista

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Re: Rear Disc Brake Conversion Kit - 1977 Transam
« Reply #3 on: March 04, 2015, 10:31:52 AM »
Have you considered using bigger drums on the rear instead of a disc conversion?

1977 Transam

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Re: Rear Disc Brake Conversion Kit - 1977 Transam
« Reply #4 on: March 04, 2015, 11:38:33 AM »
I haven't thanks.  What would be the benefits over disc please?

Any idea what type I could use to fit into the 15 inch rims?

sms777

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Re: Rear Disc Brake Conversion Kit - 1977 Transam
« Reply #5 on: March 04, 2015, 03:05:55 PM »
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.

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Biggles, The Flying Mechanic

bonnevista

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Re: Rear Disc Brake Conversion Kit - 1977 Transam
« Reply #6 on: March 04, 2015, 05:24:19 PM »
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

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Re: Rear Disc Brake Conversion Kit - 1977 Transam
« Reply #7 on: March 04, 2015, 05:55:47 PM »
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.

Regards,
Leigh
1969 Pontiac Firebird 400

bluvelle

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Re: Rear Disc Brake Conversion Kit - 1977 Transam
« Reply #8 on: March 04, 2015, 08:32:12 PM »
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

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Re: Rear Disc Brake Conversion Kit - 1977 Transam
« Reply #9 on: March 05, 2015, 07:47:20 AM »
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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