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    Diagnose this clunk/thump

    Well, I inspected the gears yesterday and here's what I found. All the teeth look fine on all of them. The top spider gear though, does have some play in it, you can move it up and down like 2 milometers. If I grab the ring gear and shake, you can get a slight (very slight) movement at the...
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    Diagnose this clunk/thump

    Thanks for the reply's... still trying to figure out this one. I pulled off the rear end cover last night, cause I could prob use a fluid change anyway. Gears look really good, maybe replaced recently by previous owner. Will jack up and inspect it more today.
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    Diagnose this clunk/thump

    Truck is 1987 GMC 2500 4WD / 14 bolt rear. Here's the issue. When taking off from a stop, and sometimes braking, especially downhill, I hear and feel a clunk/thump that sounds like it is coming from the passenger side rear end. It also happens when the rear wheel goes over speedbumps and low...
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    Rear wheel bearing

    Thanks for the reply. Yes, I did mean the rear. I looked at the rear cover and it does have 14 bolts. Sound pretty straight foward. After pulling the drum, and anything holding in the axle at the rear that you mentioned, it slides right out? Nothing else but the drum cover to remove on...
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    Rear wheel bearing

    Just a general question... Been doing a lot of work on my 87 2500 4wd. My passenger side wheel bearing I believe needs to be replaced. Wheel has a little play when grabbing it side to side when jacked up and when I accelerate from a stop it makes a pop/thud noise. Question is... I may let...
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    steering box

    Hopefully no dirt or grime got in the system, was pretty careful about that. It was flushed. There may be some air still in the system, it has sat overnight and I will check the cold level. I've heard most of the time if it is air, it will work itself out over time as you drive it? It could...
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    steering box

    Got the steering gear put in today. Not a fun job. Anyways, no leaks and had it on jack stands to bleed the system until resovoir was proper level. One problem. It is whining a bit. Doesn't do it parked and idleing. An example is when at a stop light and just taking off, it starts...
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    steering box

    Thanks for the info chengny, that will definitely come in handy.
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    steering box

    Thanks for the info. I'll see how it goes when the part comes in next week.
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    steering box

    I ordered a reman steering box that comes without the pitman arm. Any good guides/write-ups out there that will help? Thanks, it is an 87 GMC 4wd.
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    Question about drums

    Thanks for the info so far. Yes it is 4WD model. I guess I was excited about getting it that I didn't think to look at the brake types. I drove it home 88 miles and it brakes well. It does have an obvious dragging noise on one of the front though when braking lightly. On a separate...
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    Question about drums

    I am new to working on these trucks. What involved in switching it over to disc brakes for the front?
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    Question about drums

    Yes, has drums on all 4 wheels on my 87. I thought it was kind of odd.
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    Question about drums

    I just got my first 87 GMC Sierra 2500. I was kind of surprised when I realized that the front brakes were drums as well as the rear. Is this from the factory or most likely a previous owner put them on? Whats involved in putting in front disc brakes?

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