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post #1 of (permalink) Old 02-26-2002, 01:14 PM Thread Starter
 
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Another one

I am having a weird noise come from the underside of my truck. It only happens wehn coming to a complete stop or starting from a complete stop, while in drive. It is a little chrip, kind of like a little toot on a horn. I have thought it might be the body mounts, new shocks, or the leaf spring I put in the rear but haven't been able to silence the noise. Can it be the trasmission? As I think about it there is a slight jolt, very very small, at the time of the noise. Thanks.

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post #2 of (permalink) Old 02-26-2002, 01:42 PM
 
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Re: Another one

I had that same problem on my '92. It did it all the time when taking off. I think it is just a little bit of slipage in your driveshaft. Mine did it for years and I never had any problems, after a while I got used to it.

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post #3 of (permalink) Old 02-26-2002, 03:05 PM
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Re: Another one

the likely culprit is spring slap. stick a piece of rubber between all the leaves in your leaf springs.

when was the last time you replaced the universal joint?

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post #4 of (permalink) Old 02-26-2002, 03:07 PM
 
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Re: Another one

yup, I'd be checking U-joints and the leaves. I"ve heard good things about packing leaves with grease. it attracts dirt, but keeps them pretty lubed from what I've heard....it is second hand info though

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post #5 of (permalink) Old 02-26-2002, 03:27 PM
 
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Re: Another one

The jolt is more than likely u-joints. If you put it in reverse, then stop, then put it in drive, when you first start to roll there should be a slight jolt. Means its time for some new joints.

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post #6 of (permalink) Old 02-26-2002, 03:30 PM
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Re: Another one

i've heard folks loosing the driveshaft weights and causing a mess down there. might wanna check if you still have yours.
spring packs slapping is a good one to look out for. good point!


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post #7 of (permalink) Old 02-27-2002, 02:13 AM Thread Starter
 
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Re: Another one

You said something about a U joint. Is this where the driveshaft enters the diff? Can I lube it? I packed the leaves with grease and I will check the U bolts for tightness in the a.m. SHould I really be worried or just get used to the sound?


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post #8 of (permalink) Old 02-27-2002, 02:18 AM Thread Starter
 
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Re: Another one

72 dreamer, what do you mean by driveshaft weights. What and where do I look? Thanks for all the help yall


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post #9 of (permalink) Old 02-27-2002, 10:46 AM
 
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Re: Another one

<font face="Comic Sans MS">To find drive shaft weights, the driveshaft is a good place to start... [img]/wwwthreads_images/icons/tongue.gif[/img] Basically make sure it doesn't look like something tack welded onto it has came off.

U-joints (short for Universal Joints) are cross shaped bearings. There are 2 on the drive shaft. One on each end. These ensure the driveline can be at an angle and not cause vibrations, etc. Sometimes they wear out and cause problems.

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