I'm finally going to put a dual master cylinder in and I need to know what year/car to look one. I have all drums but would still like to do a power master, if you can tell me what master too look for. Thanks
Give me a call for about 160 bucks I can get you a new booster and a new master cylinder. The booster will have the brackets to goto the firewall. Later Shane T
Mine uses an Impala master cyl from roughly 68-70 , but no power booster. Bolted right on, but I think I had to use some longer bolts. Then its just plumbing and I converted the brakes to self-adjusting with later model hdw. available through the tri-5 vendors or your local parts place.
The only reason not to use a junkyard booster is because you will have to drill more holes in the firewall. I did the manual dual port master cylinder thing for a couple of years and it worked great. Power breaks are nice though on a big shoebox. Later Shane T.
My two cents: Skip the junkyard parts. I've gone that route, and the h***le of fixing/rebuilding/replacing iffy parts isn't worth the time and the cost of gas driving back and forth. I converted a 56 to power front disk a few years ago, with junk yard parts. The booster worked out OK, but the residual valve was gummed up and half way to a cruise, the front brakes clamped down and wouldn't release. I had to pull off the side of the road and spend my afternoon crawling in the dirt to fix the brakes, missed the show, etc. My current 57 daily driver still uses a single-bowl MC with shoes all around. No problem stopping in Atlanta commuter traffic. But when the time comes, I'll step up to power front disks. I can do that for the same money as rebuilding the stock brakes, and toss those ball bearings in the front hub, too. I put an aftermarket power booster/front disk setup on a 57 Wagon -- piece of cake. Power disk combos for 57 Chevrolets are EVERYWHERE. You can buy them in various stages, if you want to at least do a little scavenging for parts.
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