All;

Is this TSB still in affect? When I tow my 5th wheel and my 4WD at the same time it really shudders (I am below 10K load)

Anyone install this? Details? Is it a one piece drive shaft or just a Prop shaft?

My dealer seems to be a nice fellow; but claims ignmorance.. I will assume he is..

Thanks .. I do not want the shaft wrapped up in a ball under the truck..

Launch Shudder on Acceleration (Install New One-Piece Propeller Shaft) #01-04-17-001B - (Feb 21, 2002)
Launch Shudder On Acceleration (Install New One-Piece Propeller Shaft)

1999-2002 Chevrolet and GMC K2500/3500 Extended Cab Long Box and Crew Cab Short Box Pickup Models

With Automatic Transmission

This bulletin is being revised to add model information, remove procedure steps and change parts information. Please discard Corporate Bulletin Number 01-04-17-001A (Section 04 -- Driveline Axle).

Condition

Some customers may comment on a vibration during acceleration from 0-40 km/h (0-25 mph). This may also be referred to as launch shudder. This condition may be more noticeable when the vehicle is carrying cargo or is used for towing.

Correction

A new propeller shaft is available for service to correct this condition. This new propeller shaft is a one-piece design and will replace the current two-piece design.

Install a new one-piece propeller shaft on affected vehicles. Refer to the service procedure and the parts information listed below. Match the affected vehicle with the appropriate propeller shaft. Refer to the usage information below. This fix does not apply to the Chassis/Crew Cab Models (K35943).
<LI type=1>Remove the propeller shaft assembly and the center bearing. Refer to the Propeller Shaft - Two Piece procedure in the Propeller Shaft sub-section of SI2000. For this bulletin, it is not necessary to mark the components for re-assembly. FIGURE Center Bearing Support Bracket(c) http://service.gm.com/engif/000/000/778/778382.gif http://service.gm.com/tif.gif Important The center bearing support bracket (1) must be removed in order to provide enough clearance for installation of the one-piece propeller shaft. Avoid damaging the crossmember during removal of the center bracket. For proper clearance, no more than 13 mm (½ in) of the bracket may remain on the crossmember after removal. <LI type=1>Remove the center bearing support bracket from the kick-up crossmember using a cut-off wheel. <LI type=1>After removal of the center bearing support bracket, grind the rough metal edges smooth that remain on the crossmember. <LI type=1>Coat the exposed metal surfaces with frame coating using the information found in the applicable Service Manual and GM Refinish Material Booklet #4901M-D-2002 (English) or #4901M-D-F2002 (French).
Install the new propeller shaft. Refer to the Propeller Shaft Replacement - One Piece in the Propeller Shaft sub-section of SI2000 for installation guidelines and yoke retainer tightening specifications.
Parts Information

<TABLE width="100%" border=1><TBODY><TR><TH vAlign=bottom align=middle>P/N



</TH><TH vAlign=bottom align=middle>Description



</TH><TH vAlign=bottom align=middle>Usage



</TH></TR><TR><TD vAlign=center align=middle>15077431



</TD><TD vAlign=center align=middle>Shaft Asm.- Prop



</TD><TD vAlign=center align=middle>K25953 w/ LQ4, MT1, C6P


(99-00 8600# GVW)


</TD></TR><TR><TD vAlign=center align=middle>15077434



</TD><TD vAlign=center align=middle>Shaft Asm.- Prop



</TD><TD vAlign=center align=middle>K25953/35953 w/ M74 (Allison Trans)



</TD></TR><TR><TD vAlign=center align=middle>15077435



</TD><TD vAlign=center align=middle>Shaft Asm.- Prop



</TD><TD vAlign=center align=middle>K25953 w/ LQ4, MT1


(HD Model 9200# GVW)


</TD></TR><TR><TD vAlign=center align=middle>15077436



</TD><TD vAlign=center align=middle>Shaft Asm.- Prop



</TD><TD vAlign=center align=middle>K35953 w/ LQ4, MT1


(11,400# GVW)


</TD></TR><TR><TD vAlign=center align=middle>15093466



</TD><TD vAlign=center align=middle>Shaft Asm.- Prop



</TD><TD vAlign=center align=middle>K25743 w/LQ4, MT1


(HD Model 9200# GVW)


</TD></TR><TR><TD vAlign=center align=middle>15093467



</TD><TD vAlign=center align=middle>Shaft Asm.- Prop



</TD><TD vAlign=center align=middle>K25743 w/M74 (Allison Trans)



</TD></TR></TBODY></TABLE>

Parts are currently available from GMSPO.

Warranty Information

For vehicles repaired under warranty, use:

<TABLE width="100%" border=1><TBODY><TR><TH vAlign=bottom align=middle>Labor Operation



</TH><TH vAlign=bottom align=middle>Description



</TH><TH vAlign=bottom align=middle>Labor Time



</TH></TR><TR><TD vAlign=center align=middle>F1280



</TD><TD vAlign=center align=middle>To remove Two-Piece Propshaft and Center Bearing Mount Bracket and Install One-Piece Propshaft



</TD><TD vAlign=center align=middle>0.9 hr



</TD></TR></TBODY></TABLE>



<TABLE width="100%"><TBODY><TR><TD align=left width=778>GM bulletins are intended for use by professional technicians, NOT a "do-it-yourselfer". They are written to inform these technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions, and know-how to do a job properly and safely. If a condition is described, DO NOT assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See your GM dealer for information on whether your vehicle may benefit from the information.


</TD><TD align=middle width=42>http://service.gm.com/engif/000/999/999/999999994.gif </TD><TD align=middle width=167>WE SUPPORT VOLUNTARY TECHNICIAN CERTIFICATION


</TD></TR></TBODY></TABLE>

© Copyright General Motors Corporation. All Rights Reserved.

is there a single peice driveshaft for the ext cab short bed models ? or is it long bed cc/ec only ?

Extended Cab Long Box and Crew Cab Short Box only.

GMCSID, I just bought an 05 CCSB 6 speed that has the shudder, I see in the begining of the TSB it say "automatic transmission" is there a TSB for the ZF?
thanks
dan