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  1. #1

    Default 1998 Suburban brakes- shoes not wearing

    After searching all of the forums and having read about the TSB 99-05-24-001, which covers the need to replace proportioning valves and rear brakes on certain model, I felt I had found my answer...

    My K1500 4x4 suburban SLT is chewing up brakes like candy- just the fron ones, and more of the inboard pad than the outboards. The rear shoes don't seem to contribute to a STOP, as the nose seems to be pulling downward. I assumed that the fix was to replace the Prop. Valve and switch to the shoes mentioned in the TSB. It specifically says: "Replace the rear brake shoes with P/N 18029651. This does not apply to the 13x2 1/2" brake shoe, the Dura Stop P/N 18029650 brake shoe or any other size brake." Since the vehicle only came with 11-5/32 x 2-3/4" or 13x2 1/2" brake shoes, I stupidly assumed that the fix indeed applied to me as I do not have 13x2 1/2" brake shoes; but the smaller 11's. The new shoes I ordered are 13's!... like I said "stupidly assumed". So now I have a new proportioning valve and I need to put the shoes back in as the new ones dont fit the spindle plate or drums.
    1. What type of shoes (11's) can I go to for the best stopping power?
    2. In bleeding the brakes- new wheel cylinder needed, I plan on pressure bleeding- does the dirt road ABS activation prior to bleeding trick work?

  2. #2

    Default

    The rears don't do much of the stopping on these trucks. Could simply be the shoes are not adjusted properly. They should be almost dragging when idle. Use the parking brake cable to keep the shoes centered as you adjust them up.

    Most any shoe will work fine. You rarely see more than one grade at the auto store anyway. As for the inner pads wearing faster, not unusual. The calipers need to slide nice and easy on the bolts/pins. How many miles are you getting out of the front pads? What kind of driving? What brand/grade are you using?
    When you hear hoofbeats, look for horses not zebras.

  3. #3

    Default

    These pads are wearing at the rate of 2-3 times a YEAR! I have tried expensive ceramics -raybestos I think; but went to Duralast Gold because if I have to keep changing them, I might as well get them for free.

    What is the correct way of adjusting the shoes?

    what does this mean?
    Use the parking brake cable to keep the shoes centered as you adjust them up.

  4. #4

    Default

    What is the correct way of adjusting the shoes?
    They should self adjust, so, when I've done mine, I put the drums on and apply the brakes several times while in the air to get the shoes to extend out, then several applications around the block until they feel like they've tightened up all they will.
    '98 K1500 Suburban LS 5.7 L 4L60E NV246 ARB
    '92 Ford Explorer XLT 4x4 4.0 L A4LD BW13-54 Trac-loc rear
    "My toys were the greasy cogs and springs and pistons that lay around all over the place, and these, I can promise you, were far more fun to play with than most of the plastic rubbish children are given nowadays." Danny in Roald Dahl's Danny The Champion of the World

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