98 Suburban-squeak-increases with road speed

Discussion in 'GM' started by phoebeisis, Oct 28, 2012.

  1. RedylC94

    RedylC94 Well-Known Member

    Be careful not to inhale any of that dust while cleaning it out!

    I replaced my original rear brake shoes at about 400K, for $12 or so from NAPA. (They're a LOT smaller than those of a Suburban, though!)

    Good luck!
  2. phoebeisis

    phoebeisis Well-Known Member

    So the drum isn't bolted on-just "pops off" after I take the wheel off.
    Is that right- I just persuade it off-meaning hit it with a dead blow plastic hammer?
    I expect that means pound the heck out of it?

    School me here
    1)Jack up
    2)Take wheels off
    3) Drum held on by just the wheel pressing it on
    4)So pull pound it off??? Perhaps pry if possible?
    5) Does the E- brake -cable- have to be Disconnected in some way 1st- or is to bracketed onto some other hard part?

    Redy- I hope there isn't asbestos dust-1997 is when it was built-not sure if shoe could be original-PO wasn't a hypermiler- but plenty of HY driving(less braking) your shoes lasted 400,000 miles??? WOW!

    Thanks all-parts are cheap- maybe $15-$20 for springs maybe $30 or less for shoes-AZ I guess-is napa better for this sort of thing?
  3. phoebeisis

    phoebeisis Well-Known Member

    Good idea on the dust-I don't want to inhale that crap no matter what it is.
    I'll hose the heck out of everything before starting work
    Maybe even use some simple green-making sure I get it all off braking surfaces!
  4. herm

    herm Well-Known Member

    They usually pop off but find that youtube tutorial.. after 100K+ miles it might need some persuading
  5. phoebeisis

    phoebeisis Well-Known Member

    Right-these MIGHT be the original shoes-220,290 miles
    so persuading-I fully expect that-they sure haven't been accessed in 5.5 years of my ownership-and PO- was big on receipts-he gave me last 3 years-2004 on
    Along with the Bill of Sale for $31000 he paid for it in 1997.
    I could buy TWO of the sorts of new vehicles I usually bought for that kind of $$
    I will HUNT up the tutorial-Movies are worth 100,000 written words

    Big aside-Auto zone has $10 print out coupons on 5 qts of Mobil one oil-this usually puts them under WalMart in price on the jugs. I use 10w30 EXTENDED drain on the Suburban now-as nearly as I can measure no decrease in MPG.
    Thanks all
    PS Herm-you should be smiling- talking heads are leading me to believe Mitt will win-
    not cutting my wrists of course- he was a moderate in Mass
    He will cut rich folks taxes- if unemployment is still high in 4 years-years in which the demographics will trend to DEMs- he'll be one term.
    If he gets us in an ongoing mess in Iran-one term
    Global warming-droughts superstorms- become more common
    and he takes the Rep line" fake scam" one term.
    Just hope he can stand up to neocons-they have pointlessly killed maimed far more of our soldiers than Osama-but they are NEVER WRONG by their lights-smartest kids in class-freakin know it alls-really dangerous-all that confidence-arrogance

    So circumstances-and his fairly cautious nature-probably means he can't really foul things up much-or one term.
    And GUNS will drop in price-so come May2 -SS 62 YO- I'll be able to replenish mine.
  6. 08EscapeHybrid

    08EscapeHybrid Moderator

    You got the procedure down. Take wheel off, and the drum will usually slide off, because the adjuster probably isn't working right by this time. Sometimes you gotta give it a smack or two with a hammer. Don't be afraid to hit it. You're not going to break anything, and if by some chance you do, it needed to be replaced anyway. If the pads are too tight to get the drum off, you will need to back the adjuster off. There is usually a small slot in the back of the hub assembly about an inch or two from the bottom. Pull the rubber plug out (if its still there) and you can access the back side of the adjuster. An old spoon works well to get in there and back it off.

    When you do get it apart, take the adjuster apart. Completely unscrew it. Clean it up with some WD-40 and a nylon scotchbrite scrubby pad. Dry it off with a paper towel, then lube it up with some white lithium grease before putting it back together. This will ensure that it will not seize on you and stop working. I don't remember any special provisions for the parking brake cable, I think the cable is secured to the back of the hub assembly, you just have to unhook it from the pads.

  7. phoebeisis

    phoebeisis Well-Known Member

    These GM trucks are usually easy to work on-lot to be said for them as low mile per year second vehicles bought used/cheap-and hypermiled.
  8. herm

    herm Well-Known Member

    Make sure your wife takes a movie while you attempt to remove the drum, should have lots of entertainment value :)
  9. phoebeisis

    phoebeisis Well-Known Member

    Sure hope not!! I will probably pound it a bit with my plastic coated shot filled hammer
    and then a few times gently hit it with a 3 lb maul before I actually try to remove it.
    Just to sorta crack and rust or goo- get it vibrating etc
    and to show it I mean BUSINESS!
  10. herm

    herm Well-Known Member

    Old brakes like this will wear a groove in the drum, hopefully the pads will retract enough so that they will clear the groove. You may luck out.

  11. RedylC94

    RedylC94 Well-Known Member

    That's about what I thought I remembered. However, further research in written records reveals a different truth. Sorry to exaggerate!

    I replaced the original shoes at only 291K due to leaking wheel cylinder(s). The next set, from J.C. Whitney, was replaced at about 488K with the $11.21 set from NAPA.

    About Herm's groove, that's possible. However, my experience was not so much wear as a ridge of rust between the shoes and the inner edge of the drum, which has a similar effect of making the drum hang on the shoes while you're trying to pull it off.

    Have fun!
  12. phoebeisis

    phoebeisis Well-Known Member

    What a Bald Face Lie-a pitiful 291,000 miles on the original shoes!

    So maybe I'll have to back the E-Brake adj back and pry the shoes back to get the drum off-
    On a motorcycle-never happened but if it did-I would let a bit of fluid leak out-did that with a frozen brakes several times.
    Don't want to do that-bleeding cars is waaaaay not fun.
  13. herm

    herm Well-Known Member

    I bet the brake fluid is pretty old also..
  14. phoebeisis

    phoebeisis Well-Known Member

    It is at least 5.5 years old-figure maybe 8 years
    I'll be busy I guess!

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