Took my truckwhich I had for a week) due to a noise in the front end. Well the dealer (ford) took it the the chevy dealer and they called and said that they were going to replace the intermediate shaft. What the hell it this? Thaks fellas

 

Probably the intermediate steering shaft...common problem on the NBS trucks. Kind of makes a clunking in the front end and the steering wheel feels "loose" when they go bad.

 

It's the two piece shaft that goes from the steering column end to the steering gear box or rack and pinion. It is splined where the two pieces meet.
The splines tend to go dry and bind up a bit causing noises when you stop and go or turn from left to right, or when ever the truck flexes.
If caught early enough it can be just "simply" regreased. If it is allowed to do it for a long period of time the shafts will then need to be replaced, due to excessive wear on the splines.
GM has had multiple problems with this since their Silverado makeover in 1999 to present.
My 2005 Silverado's intermediate shaft already had to be greased at 15,000mi.
Now you should know what an intermediate shaft is.

Jim

 

Do now, thanks fellas. They caled while ago and said it was finished. Looks like Ill have to return the 05 Ford F150 they gave me to drive(thank God)