gibbo69olds

I have a 69 cutlass that I want to buy a disc conversion kit through summit and want to make sure I get everything I need. I have power drum brakes now so my question is do I need to get a master cylinder, booster, and prop valve or can I use what is on the car now? What can I reuse if not all of it? Thanks in advance for all you help.

joe_padavano

You can reuse the power booster. You need the correct master cylinder. Drum brake cars do not have a prop valve, just a distribution block. You need the correct prop valve. Speedway Motors has the best prices I've seen on conversion kits. Also, read this:

https://classicoldsmobile.com/forums...sk-brakes.html

gibbo69olds

Joe, thank you so much for the reply but after i posted this I did do a little diging and found your info. The reason I am buying through summit is that I have almost 500 bucks in gift cards from family for xmas otherwise I would be doing some bargin hunting. I hope it comes with a propotioning valve. If not I will have to buy that seperate. Do you think that is something I could get at my local parts store?

joe_padavano

Unfortunately I have not seen proportioning valves at normal auto parts stores. The brake specialty houses do sell them, however.

69Rman

I'm working on something similar with my '69. Joe has answered a few questions already for me.
Here's one more.
Joe, I realize it may not be the correct part by appearance and part number, but I found this one on epay that claims to be "NOS 1969-72 Chevy Rear Brake Pressure Prop Valve 70 71"
part number is 18006626
Do you know if I or gibbo69olds would be able to use it?
It's a lot cheaper than the re-pop one that online is offering on Epay. Theirs is $60, this one is $10...
Here is the link to it...
http://cgi.ebay.com/ebaymotors/ws/eB...K%3AMEWAX%3AIT

Thanks
Duane

joe_padavano

I've never seen that version before. It might be for the full size cars?

68conv455

I can take care of those summit bucks for you. That will allow you to bargain shop.