Replacing rear driveshaft?

Tiny
SCMOORE
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Dealer say's he can get me one using the VIN number but he does not know what length it would be but assures me it will fit. It is double the price and a one hundred mile round trip to get it and I would like to know it is going to be the right size.
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Friday, October 16th, 2020 AT 6:08 PM (Merged)
Tiny
SATURNTECH9
  • MECHANIC
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I do not blame you there if I see one I will let you know.
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Friday, October 16th, 2020 AT 6:08 PM (Merged)
Tiny
JJJENNNNN
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Exact same issue: except ours is a 2003 Silverado 1500 (reg. Cab, long bed). The rear drive shaft is 57 inches long, measuring center of u-joint to center of u-joint. We bought a 61-inch one, hoping it would fit, but nope cannot get it in, too long. Measured the one we bought on the ground next to the original one and it is in fact 61 inches measuring the same way. All we can find are those three sizes. Next one down (48 inches) would be way too small. Anyone have any idea where to find this oddball 57-inch drive shaft that apparently at least one other person (with a similar make of Silverado) has too?
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Friday, October 16th, 2020 AT 6:08 PM (Merged)
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
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I would call salvage yards they will have one.
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Friday, October 16th, 2020 AT 6:08 PM (Merged)
Tiny
MATTREULE
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  • 1 POST
  • 2001 CHEVROLET SILVERADO
  • V8
  • 4WD
  • AUTOMATIC
  • 90,000 MILES
I have the drive shaft off so how do I remove the universal joint from the draft shaft
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Friday, October 16th, 2020 AT 6:08 PM (Merged)
Tiny
HMAC300
  • MECHANIC
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There should be clips either onteh outside or inside of the driveshaft. Put he shaft ina vise and you can either put a socket in that will slide through the driveshaft and another one on the other side that is largerandpress the joint out. Repeat until the joint is out then reinstall the same way.
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-1
Friday, October 16th, 2020 AT 6:08 PM (Merged)
Tiny
TLMYERS
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  • 2 POSTS
  • 2000 CHEVROLET SILVERADO
  • V8
  • 4WD
  • AUTOMATIC
  • 139,000 MILES
I am hearing and feeling a vibration noise in my truck. I mostly feel it when I get up to aroung 45-50 Mph, I can feel iit in the gas peddle. Very occasionally it will make a clunking noise, but not very often. I dont know if it is a CV joint or a U joint, or it could even be the tires off balance because a weight fell off.
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Friday, October 16th, 2020 AT 6:08 PM (Merged)
Tiny
BLACKOP555
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Clunk when you hit a bump or move the steering wheel suddenly?

How loud? Wheres it sound like its coming from and does it sound like a tire thud or different?

If the weight fell off it could cause a vibration felt in the pedal, but not really that clunk.

Get the tires rebalanced and well see bout that clunk.
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Friday, October 16th, 2020 AT 6:08 PM (Merged)
Tiny
TLMYERS
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It doesnt clunk but maybe once in a great while, so I dont think that is anything. But I do feel the vibration in the pedal, so I am have my tires rebalanced today.
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Friday, October 16th, 2020 AT 6:08 PM (Merged)
Tiny
BLACKOP555
  • MECHANIC
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Hard to say since its so far apart, just probably a few different things adding up for the clunk. Weight, wind, speed list goes on.

Definetely would get the tires rebalanced for the vibration, maybe a rotation also.
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Friday, October 16th, 2020 AT 6:08 PM (Merged)
Tiny
SCHARGEDBMW
  • MEMBER
  • 5 POSTS
  • 2000 CHEVROLET SILVERADO
  • V8
  • 4WD
  • AUTOMATIC
  • 150,000 MILES
Just recently I have noticed a squeaking coming from the back of my truck when I drive. It started out intermittently but now it's becoming more frequently. Its only is noticeable when I'm on the throttle, and it doesn't matter if I'm going 5 mph or 55 mph the noise will just increase and continue with speed, my assumption is that it's the bearing in my u-joints and that they either need greased or replaced. Do you have any ideas?
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Friday, October 16th, 2020 AT 6:09 PM (Merged)
Tiny
MERLIN2021
  • MECHANIC
  • 17,250 POSTS
I think you hit the nail on the head! GM uses epoxy tio hold em together, use a torch and heat until the glue oozes out of the small hole, you'll see it, then replace as normal.
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Friday, October 16th, 2020 AT 6:09 PM (Merged)
Tiny
THE FACTORY MAN
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I have never heated a joint to loosen the injection molded plastic that holds a joint in. You will shear the substance as you use a press to remove the joint.
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Friday, October 16th, 2020 AT 6:09 PM (Merged)
Tiny
MERLIN2021
  • MECHANIC
  • 17,250 POSTS
Not all people have a press, and I have done a ton of em this way. No problems arise!
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Friday, October 16th, 2020 AT 6:09 PM (Merged)
Tiny
THE FACTORY MAN
  • MEMBER
  • 50 POSTS
How do you replace the joint without a press or vise?
Inquiring minds want to know!
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Friday, October 16th, 2020 AT 6:09 PM (Merged)
Tiny
MERLIN2021
  • MECHANIC
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Have you ever heard of eithe a vise, or hammer and socket? Don't need a big shop for small jobs. Oh by the way, this isn't mechanics 101!
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Friday, October 16th, 2020 AT 6:09 PM (Merged)
Tiny
MERLIN2021
  • MECHANIC
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Or use a ball joint press without adapters, Fixed a dump truck with that once, broke down in my driveway!
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Friday, October 16th, 2020 AT 6:09 PM (Merged)
Tiny
USMCTACP
  • MEMBER
  • 2 POSTS
  • 2000 CHEVROLET SILVERADO
2000 Chevy Silverado Four Wheel Drive Automatic

Recently my rear U-Joint snapped and my drive shaft fell. I replaced the drive shaft with a used one from a repitable salvage yard. It came with a working U-Joint so I did not replace it. After installing, my front end is vibrating around 50mph-60mph. I have been told the drive shaft may be out of allignment or the tires need balancing (replaced tires 7 days ago-balanced). I don't recall if the vibration was occuring before I had the tires replaced. Any suggestions?
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Friday, October 16th, 2020 AT 6:09 PM (Merged)
Tiny
SCHARGEDBMW
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  • 5 POSTS
Ok so I finnaly got around to replacing my u-joints I had to take it to my friends shop where we used a torch to soften up the epoxy to I could pop them out. And I found that it was easiest to use a press because a vice could not generate enough force to pop them out.

But the only thing is now that I replaced the u-joints it still making a ticking niose that I previously thought was coming from the worn out u-joints, when I put my truck up in the air and put it un neutral and spin the driveshaft by hand I can hear the ticking, but the noise is coming directly from the drive shaft, which doesnt make any sense. Any ideas would be great. Thanks
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Friday, October 16th, 2020 AT 6:09 PM (Merged)
Tiny
MHPAUTOS
  • MECHANIC
  • 31,937 POSTS
Hi there,

If the vibration is only since the drive shaft was replaced, I would be getting the uni's checked and also the shaft balance checked.

Mark (mhpautos)
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Friday, October 16th, 2020 AT 6:09 PM (Merged)

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