The TSB for the Clunk, Chirp, Squawk!

kaspar139 · April 17, 2002

Guys, I took my truck to the dealer yesterday (FINALLY), and I was having them look at my 4-Wheel drive switch problem. Anyway, the service guy openly admitted that they were having problems with the problems with the Switches, and as we were talking about that, I told him about this site, and handed him the printout of the TSB for the Clunk, Chirp, Squawk thing where they replace the stock yoke, with a nickel plated yoke. The guy said, "you have done your homework." I just smiled. He said, they would do it, no problem. I was so shocked. Still am. ;)

I will update ya'll when I get the rig back, and let you know if that fixes the problem. But, anyway, I am just shocked.

:plainsmile:

polarbear · April 17, 2002

Yeah isn't this site great for items like this. I too had my slip yoke replaced, only after receiving the TSB from this site. Going on 2k no problems yet....knock on wood. Best of luck

01z71 · April 17, 2002

Yeah, I was "Armed" with the TSB and gave it to my service guy and they took care of it no problem. It's been like two months and no driveline clunk.

kaspar139 · April 17, 2002

You guys are getting my hopes up ;)

But, I eagerly await the truck being returned to me, since I am in a STINKIN Dodge Neon (piece of chit) as my rental car!

kwf1 · April 18, 2002

:ehh: Hey guys, where is the site for the TSB's ?

chainsaw4130 · April 18, 2002

Does anybody if the slip-yoke problem applies to 2002 models as well.

kaspar139 · April 18, 2002

I believe it does...

Clunk, Bump or Squawk when Vehicle Comes to Complete Stop or Accelerating from Complete Stop (Replace Rear Drive Shaft Nickel-Plated Slip Yoke)

#01-04-17-004

Clunk, Bump or Squawk when Vehicle Comes to Complete Stop or Accelerating from Complete Stop (Replace Rear Drive Shaft Nickel-Plated Slip Yoke )

1999-2002 Chevrolet and GMC Extended Cab Short Box Pickup Models (Silverado and Sierra)

with 4L60-E (RPO M30) or 4L80-E (RPO MT1) Automatic Transmission and Automatic 4WD (RPO NP8)

Condition

Some customers may comment on a clunk, bump or squawk noise when the vehicle comes to a stop or when accelerating from a complete stop.

Cause

A slip/stick condition between the transfer case output shaft and the drive shaft slip yoke may cause this condition.

Correction

Replace the rear drive shaft slip yoke with a new nickel plated slip yoke, P/N 12477702 (1500 Series) or 12477704 (2500 Series). Follow the service procedure below.

kaspar139 · April 18, 2002

Also, got my truck back last nite, and my Lord, it drives like it should. It is amazing how much that noice irked me! I have only driven on the new yoke for 100 miles (long way to work), but it has been perfect the entire time. Noticably better than simply greasing the driveshaft.

Sarah99GXE · April 26, 2002

Now I wonder if this also applies to the 97's? We have the clunk as well when coming to a stop (and when lifting your foot up off the brake to take off)...

kaspar139 · April 26, 2002

I would guess it probably does, but that the TSB is a different one. They are specific to the vehicle year/make/model... ???

99silveradoz71 · April 28, 2002

Got the yoke replaced Friday and as of yet, no problems. They greased it before which solved the problem for about a year I think. Hopefully this will be more long term. Going to phone this GM rep that I got a number for and see if they'll toss the extended warranty my way.

Bill