Um, OK. Sure I guess...
The shaft on my own truck looked like the picture Andrew posted. It lasted 200k on the OEM configuration. I put 60k on the McGear with no clunk. So yeah, I guess a few thousand.
:D
Your only other course of action is to replace the shaft.
Mitch
The area with the splines is longer. I just put this up in another post, but there is a picture of it in here somewhere:
Architectural Timberworks - Custom Timber Framing, Design & Construction
Mitch
The McGear is just that, a gear, not a shaft. The OEM shaft stays in place. The McGear replaces the transfer input gear and gives more of a purchase on the old shaft. I believe I have heard of someone fully stripping out the splines on the shaft, but I do not know who or where. I have personally...