Question about 1989 GMC C1500

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Rusted up shock nuts

Well i got that pitman arm and idler arm deal done, but now I am replacing my front shocks until I can replace my rear ones in two weeks. I got one off on the driver side but for god sakes the passenger side one is a pain i cant get any toolas in there to get anything off. I know that I have to use a tool to hold the top portion while I untighten the bolt on the top of the shock, but thats my problem i can get anything in ther eto get it of because I have no room to do so. Can you recommend a tool that would help me get in there and get that nut off the top portion of the shock? Everything is so rusted I have applied PB or BP buster (I cant remember the correct name) to the top of the nut to try and work its way through all that rust. Like I said I got the driver side off after gently working it for 3 hours, and replaced that shock. I actually own the 4x2 1989 GMC sierra with the 305 w/o fleetside. Thanks again for all your help.

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  • 2 more comments 
  • chevy2102001 Sep 23, 2008

    thanks a bunch i appreciate it a lot

  • chevy2102001 Oct 03, 2008

    I got another question for ya. I know for a fact that I have a small exhaust leak and I dont nessecarily have the cash to take it to a shop. I do but I dont want to spend that kinda money where would an exhaust leak normally occur, and how could I fix it a home until I get the cash to take it to a shop. Can you help me on this?

  • chevy2102001 Oct 29, 2008

    Thanks again i was informed that the leak is coming from the manifold to pipe area. ya know wher ethe manifold end connects to the pipe. Now chances are that is where its coming from due to the excess exhaust smell in te engine compartment and plus you can see visually that the bolts and just about rusted so bad that they arent even there anymore. well my dad and a old friend of ours said that if i can extract the bolts from the spot where the exhaust manifold and the pipe meet and replace the doughnut ring that goes inside and put new bolts in there that it should fix the problem. and that getting a new set of headers would be a waste considering the originals are still good. would replacing the doughnut ring and putting new bolts in fix the leak in that area?


  • mostromracer Apr 01, 2009

    i also have a manefold leak on the spring loaded flange. i hear its much easier to remove the manefold an then re-do the studs... just easier so thats just FYI



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  • Master
  • 360 Answers

Grip the shaft where it meets the shock with a pair of "vise grips" or a small pipe wrench. use a small wire brush to get the rust off the carefull not to do this with the new one. the groves on the shaft will ruin the new one. also ive used a cutting torch just keep some water handy...... the rubber tends to catch fire good luck and if you need any more advise please feel free to ask away. ohh by the way check the ball joints on this they have a tendency to go bad. oh i love pb blaster its the best....... newer cars have the aluminum heads and the spark plugs tend to get stuck in the head. spay that on the plug and it frees the plug. ford explorers are the worst good luck

Posted on Sep 20, 2008

  • 1 more comment 
  • Jimmy
    Jimmy Sep 23, 2008

    no prob thanks for rating it as fixed........ jimmy

  • Jimmy
    Jimmy Oct 03, 2008

    hhmmm let see most likely a manifold or a manifold to pipe issue. not to bad to do but they have a tendency to rust up........ pb blaster lol let me know what happens..... you could have a friend put a rag over the exhaust pipe and you could listen for the leak. good luck friend jimmy

  • Jimmy
    Jimmy Oct 29, 2008

    yes i would use oxy acetelyne torch and heat them up to remove them...... good luck justuscc



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