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to everyone who has had the slipyoke replaced!

mrups

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mrups Enthusiast

mrups

Posted
Posted

Well I took my c3 in to have the god awfull clunk checked out and they said they would replace the slip yoke because mine was rusted and that was causing the clunk.  Happly walking out to the truck.  Thinking the clunk would be fixed!  I put it into reverse and CLUNK!!  I went right back in and complaind and they said they replaced it with a new nickel plated one, and the clunk was because it is all wheel drive!!

 Have they mentioned anything to u guys about the rust!!

Would they have replaced it with a cheaper one or non niickel plated.  Would any of these be the case.  I have already talked to another c3 owner who had the same procedure done and it was fixed.  

How come mine is different .

PLEASE SOMONE HELP!!!!!!

Thank you

Rob

Dihappy Enthusiast

Dihappy

Posted
Posted

Hey man, sorry to hear about your problems.

 

Ive had the #### cast iron, or whatever it is, slip yoke since i got my truck in 99!

 

I finally got them to agree to fix it, but i havnt taken it in.

 

Anyway, the other day i was changing all the fluids and axle seals and went ahead and greased up the slip yoke while i was at it.

 

True the old yoke rusts a bit around the outer part and sticks a bit causing the stupid "squak" when it slips in/out.

 

I lubed it up real good with Slick 50 Grease and its been perfect since :jester:

 

I dont know how long it'll last, but its way easy to grease up and ill just do it again when it starts up.

 

I dont know about your coninued "squak", but mine never made the noise in reverse.

 

Drive it around a bit and see if it still does it like it used to.

 

It may just need some more greasing up, or maybe they never greased it.

 

You can do it yourself in minutes man.

Shaners Senior Enthusiast

Shaners

Posted
Posted
If it "clunks " going from park into gear, I would think it would be a universal joint.  It sounds like there is alot of driveline slack to me...
01z71 Enthusiast

01z71

Posted
Posted
I had mine replaced about ten thousand miles ago.  It has worked great with no "Clunk".  No one said anything about rust though.  Sorry to hear the problems you are having.
BlueRado Enthusiast

BlueRado

Posted
Posted

mrups, don't know if this is applicable to the AWD trucks or not (is probably different transfer case, and thus different fluids), but there was a change in the autotrak transfer case fluid to a teal-colored fluid that had better lubricating properties. It cured the bump/clunk issue that was happening on acceleration and stopping.  If this is happening when changing gears or reverse to forward, I think Shaners is right.

 

You might check w/ the dealer, but after that "it's an AWD vehicle" comment, maybe you'd want a 2nd opinion?

 

Hope this helps!  :jester:

Z71GUY Enthusiast

Z71GUY

Posted
Posted

I agree with Shaners.....sounds like a U-Joint to me.  I've already had mine replaced once for the same noise.  I've got about 35k on the truck....

 

 

 

Eric

99silveradoz71 Senior Enthusiast

99silveradoz71

Posted
Posted
Had the u-joints done at 20k or so.  The slip yoke around 30 probably and the fluid at 36.  She's reasonably quiet now.  From what the techs and others say, apparently there's a certain amount of play put into the driveline.
kbi_s1 Enthusiast

kbi_s1

Posted
Posted

Here's the tsb for the slip yoke, I think this also covers your c3:

 

http://www.nhtsa.dot.gov/TSBScans/sb627861.pdf

 

You could check and see if they replaced the correct P/N.

 

I found another builliten from GM which kind of implied that some dealers were subsituting another slip yoke P/N instead of using the one in the TSB because demand was high and they were out of stock on them.

 

Second paragraph in this link:

 

http://www.nhtsa.dot.gov/TSBScans/sb629716.pdf

 

Just my .02

 

KB

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