How to replace the GMT800 Intermediate Steering Shaft (ISS)

[Alljackedup408]

This note should be made big... if you spin it too far.. boom. air bag light.


NOTE: During this entire process you'll want to make sure that you do not rotate the steering wheel. It's not going to do any damage to bump it or nudge it a little but from what I understand, the SIR coil is limited in the number of rotations it can handle in either direction so you don't want the wheel to get spun while the shaft is unhooked.

I did so many of these things at the dealer... eeerr. lol

 

[Zembonez]

From everything I have read, ANY new shaft will solve the problem for quite some time. The latest greaseless designs seem to last the longest according to the folks here who have done theirs.

 

[ScottyBoy]

I regreased my original one twice, each time it lasted only about 3-6 months before the clunk returned. I then replaced it a third time with a "greaseless" one. That one started clunking within a month! I then had it replaced yet again with another greaseless one and I've been fine ever since. Go figure. Its been 2 years since that last one has been replaced now.

 

[nubuilder]

Nice write-up T! I like all the peektures.

What years/vehicles does this apply to (the shimmy/clunking that is)?

My appologeze Tobias. I'm in and out of being awake...still.

 

[daddy]

Greetings. I was reading your thread and that will be an easy job. My Tahoe is clunking in the steering column pretty good. Something you said at the beginning of your instructions was that you purchased a greaseless design. Does that matter to get rid of the clunking? My 2002 Tahoe (just purchased last weekend) has 71K on it--I got a good deal on an ISS on Amazon for just shy of $50, but it's a Dorman - Steering Shaft, Part Number: 425-176. Will this fix the problem or do you think I should go greaseless?

Thanks for the help!!
Tim

The Dorman will be just fine. It's what was being used to fix this prior to GM's updated part.

 

[daddy]

Nice write-up Scott! I like all the peektures.

What years/vehicles does this apply to (the shimmy/clunking that is)?

Yeah, nice write-up, Scott.

 

[nubuilder]

Nice write-up Scott! I like all the peektures.

What years/vehicles does this apply to (the shimmy/clunking that is)?

Yeah, nice write-up, Scott.

Sorry . I fixed the 1st one.

Hey, we need a Mr. Clean icon or something (we have a Clown and J-rod, why not a Tobias).

 

[txab]

Greetings. I was reading your thread and that will be an easy job. My Tahoe is clunking in the steering column pretty good. Something you said at the beginning of your instructions was that you purchased a greaseless design. Does that matter to get rid of the clunking? My 2002 Tahoe (just purchased last weekend) has 71K on it--I got a good deal on an ISS on Amazon for just shy of $50, but it's a Dorman - Steering Shaft, Part Number: 425-176. Will this fix the problem or do you think I should go greaseless?

Thanks for the help!!
Tim

The Dorman will be just fine. It's what was being used to fix this prior to GM's updated part.

+1

There are 10 or 11 trucks we've got that have the Dorman shaft on them. They are doing fine after about 3 years, plenty of miles, under pretty rough conditions

 

[DV2000NJ]

After almost 4 years, I dont' even notice the clunk anymore.

 

[Black02Silverado]

This note should be made big... if you spin it too far.. boom. air bag light.


NOTE: During this entire process you'll want to make sure that you do not rotate the steering wheel. It's not going to do any damage to bump it or nudge it a little but from what I understand, the SIR coil is limited in the number of rotations it can handle in either direction so you don't want the wheel to get spun while the shaft is unhooked.

I did so many of these things at the dealer... eeerr. lol

My question is why would you want to spin the wheel? It is so easy to do no movement of the wheel is needed. I guess you have those out there that just don't have a clue and a warning is needed.