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Thread: brakes

  1. #1
    Join Date
    Dec 2006
    Location
    Huntingtown,Md.
    Posts
    444

    Default brakes

    Guys, why are the brakes so bad on these trucks? I mean, 13x21/2 shoes, duel m/c, should stop these trucks no problem. I've driven other trucks w/o power brakes and they seem to stop alright. ???????. Also, any feed back on mounting the rear springs under the frame when i get around to putting the 14 in? I think it's stupid to have to remove all the hardware from the axle and stuff just to install soring bushings. My,02.

  2. #2
    Join Date
    Dec 2003
    Location
    Richboro,Pennsylvania
    Posts
    363

    Default

    What material are your brake shoes made of and have your drums been turned? My truck stopped pretty good with the stock stuff, but I got tired of constant adjustments.

  3. #3
    Join Date
    Sep 1998
    Location
    North Central Wisconsin
    Posts
    11,520

    Default

    Stock it is a single chamber master cylinder...and the system, in good working order and adjusted properly works quite well.

    If you have a dual master, maybe there is a problem right there...just a guess.

  4. #4
    Join Date
    Jul 2007
    Location
    Rhoadesville, Virginia (five miles from no place)
    Posts
    5,125

    Default

    With a dual master cylinder and a power booster, my stock drums haul my 715 to a stop relatively well for a 40+ year old truck of that weight with a big V8 and lots of extra gear in it.

    Almost every truck I've seen or had my hands on has had at least a couple wheel cylinders inoperative, a questionable master cylinder, and improperly adjusted brakes. Get all that fixed and even in stock form, for the limits the truck was designed to operate in, they work acceptably.
    "Free advice is worth what you pay for it."™

  5. #5
    Join Date
    Sep 1998
    Location
    North Central Wisconsin
    Posts
    11,520

    Default

    If it has had a master swap, it may have been done in such a way that the system wont work well...ll depends on what was used and how it was setup.

  6. #6

    Default

    My truck has stock brakes with dual master and stops great. Maybe your brake system isn't adjusted to specs?

  7. #7
    Join Date
    Oct 2008
    Location
    Central MA
    Posts
    356

    Default

    I second (or third, or fourth...) that stock brakes should work fine. My fire department never liked them because they way overloaded the thing and didn't upgrade the brakes, so when I bought it at town auction they all warned me I'd have to do brakes before I could drive it. Yeah right! I can lock up the tires with on dry pavement (nothing in the bed other than the spare).

  8. #8
    Join Date
    Jul 2007
    Location
    Rhoadesville, Virginia (five miles from no place)
    Posts
    5,125

    Default

    I'd wager a bet that there is a stuck wheel cylinder or two and maybe even a clogged line. Probably only one or two wheels are actually doing anything.

    When I rebuilt my truck, All of the brake shoes looked new until I got to the left rear. They were shot and nearly to the rivets. That was because that was the only wheel that actually was stopping. All the other wheel cylinders were stuck and two of the steel lines were clogged with rust and brake fluid residue.
    "Free advice is worth what you pay for it."™

  9. #9
    Join Date
    Dec 2006
    Location
    Huntingtown,Md.
    Posts
    444

    Default

    Thanks for the replys, I did the s/s line thing, duel m/c, guess I'll try the w/cyl thing. If i had ANY hair left I'd pull it out!

  10. #10

    Default

    Should be able to get on some gravel, try to lock them up and skid. Look to see who is working and who is not.

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