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| | | Forums66 Topics128,047 Posts1,055,622 Members48,426 | | Most Online14,466 Apr 26th, 2026 | | AD Chevy Trucks Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
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on the Internet for over 30 years! and not clogged down with Ads! Again, thanks! | | | | Joined: Sep 2007 Posts: 23 New Guy | | New Guy Joined: Sep 2007 Posts: 23 | I have a 55 GMC with stock brakes. I would like to upgrade the brakes to a dual master and ?? . Do I need to go with disc conversion in the front or would a power brake booster work ok with a drum/drum set up. Not really lookin to go crazy $$$ wise just want a SAFE set up. I lost my brakes on my 55 CHEVY truck once. Wasn t fun.
Thanks | | | | | Joined: Aug 2007 Posts: 121 Wrench Fetcher | | Wrench Fetcher Joined: Aug 2007 Posts: 121 | you can buy a kit with a vac booster master cylnder and pedal brakets. you will needs risidual valves
gotta love old trucks
| | | | | Joined: Aug 2007 Posts: 121 Wrench Fetcher | | Wrench Fetcher Joined: Aug 2007 Posts: 121 | i forgot to add i used mbm products, they are fairly inexpensive ans very good quality
gotta love old trucks
| | | | | Joined: Feb 2006 Posts: 1,867 Shop Shark | | Shop Shark Joined: Feb 2006 Posts: 1,867 | Drums are fine. The only real advantage to running discs is in more of a high performance application where you might be concerned with heat dissipation. At least thats my opinion. They both work fine in the everyday world. | | | | | Joined: Oct 2005 Posts: 1,317 Shop Shark | | Shop Shark Joined: Oct 2005 Posts: 1,317 | Just my observations...after setting my 54 up with all new brakes including , hard and rubber lines, wheel and dual master cylinders, and good quality shoes, I was ready for the modern highway, or so I thought. Problem was, I was sharing the road with 21 Century cars and drivers who didn't take into consideration that I was running 52 year old technology. "Laying back" and "anticipating stops" didn't work as any hole I opened up was quickly filled with some little machine. It just wasn't safe and that took the fun out of driving.
My solution was a front disc conversion with all the necessary hardware and now driving is a pleasure. If you are driving your truck on a regular basis and navigating with highway traffic, you'd be wise to seriously consider bringing your truck up to a standard where you and your fellow travellers are safe. It will be time and money well spent.
Dave | | | | | Joined: Apr 2005 Posts: 2,097 'Bolter | | 'Bolter Joined: Apr 2005 Posts: 2,097 | I agree with Dave as I had the same situation with my 56, trying to drive it everyday is scairy with stock brakes. However, according to your profile you have a 3/4 ton. In my opinion it would be cost prohibitive installing disc conversions on them. The aftermarket guys have 1/2 ton kits so you need a custom made application. The bigger trucks have fairly good brakes stock but the weakness is in the master cylinder. I did a conversion on a 55 3600 dually for a guy, we used an 8" dual diaphram booster with a dual master cylinder. Also new drums, cylinders, lines, hoses, etc. He tows a large boat and competes with the crazies in So Cal. Fred
1956 3100 Pickup/Red/350/3sp OD/PS/Disc Brakes 1957 Bel Air Sport Coupe/Red/355/TH350/PS/Disc Brakes 2017 Silverado LT Single Cab SB/Black/5.3/6 Speed Trans 1947 Willys CJ2A w/F-Head engine
| | | | | Joined: Feb 2006 Posts: 1,867 Shop Shark | | Shop Shark Joined: Feb 2006 Posts: 1,867 | They used drums for a darn long time on trucks without any issues. Im not saying either way is a bad choice but my 53' has done wonderful with drums on/off the highway as a daily driver the past few weeks. | | | | | Joined: Jul 2005 Posts: 2,031 Shop Shark | | Shop Shark Joined: Jul 2005 Posts: 2,031 | i would upgrade (and did as dave-fla54 said) but if you're only wanting to re-do a brake master here is one source http://www.brotherstrucks.com/products.asp?dept=407there are many sources to choose from. loosing brakes is ... well not a good thing, a dying engine is another. good luck,
Last edited by carolines truck; 12/10/2007 8:27 PM.
Jim & Caroline The highway is for gamblers, better use your good sense." Gooday-that's my 1¢ answer due to the lousy economy ~ cause I ain't got - no . mo . doe Every Shaver | Now Can Snore | Six More Minutes | Than Before ... | Half A Pound for Half a Dollar | Spread On Thin | Above the Collar || BURMA-SHAVE
| | | | | Joined: Jul 2005 Posts: 946 'Bolter | | 'Bolter Joined: Jul 2005 Posts: 946 | I have a factory 4x4, so I have to stick with drums. Trying to up the safety factor I bought a set of cross drilled brake drum rotors which in theory will help cool the brakes (from brotherstrucks.com) along with the power brake and dual master cylinder setup. Now I need to figure out the brake lines. I don't know if anyone has kits that drop in or if they need to be bent. I want to make sure the rear brakes are isolated from the front. Also, I have had conflicting advise on the proportional valve for the rear brakes. I'm going with one just in case. Good luck. | | | | | Joined: Oct 2006 Posts: 4,983 Master Gabster | | Master Gabster Joined: Oct 2006 Posts: 4,983 | Check the search out here. This topic was discussed infinitum just a month or so ago - it included putting front discs on a 3600.
~Jim
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