05 Transfer Case

[sareljr]

Hey guys, my 05 2500HD with the 6.0l 4x4 (172,000miles) has some up and down play in the driveshaft by the transfer case, what causes this? Is it a common problem? There are no leaks anywhere so I'm stumped. Mines kind of like this but not nearly as bad http://youtu.be/Mt-6Y9rbzYw. Anybody else have this issue. It cause a slight clunk noise when taking off or stopping on the road, is there a bad bearing?

[gmtech4]

normal movement,you have a dry slip yoke into the rear of t case output ,lube the splines ,this is causing the clunk,,do a search here

[sareljr]

Alright, man I was worried I'd have to get a reman or a new t-case but if that's all there's to it not a problem

[sareljr]

So do I just pull the driveshaft from the t-case and then pack grease in there?

[gmtech4]

So do I just pull the driveshaft from the t-case and then pack grease in there?

yes ,there is some special grease to use from GM but im sure someone here will inform you what that is .....

 

chock wheels so truck doesnt kill you

[sareljr]

Found a great link a step by step how to if anybody wants to lube the slip yoke

http://www.truckmodcentral.com/forums/f66/gmt900-slip-yoke-lubrication-2504/

[gmtech4]

darrel,i really thought it was spelled that way lmao ,,,,,tyvm for sorting me out lol

[txab]

[sareljr]

Well I followed the link step by step using John Deere HD Molly grease on the splines and my truck is so smooth it's hard to believe, takes off with out any noise or clunks!