You might start by greasing the slip joint. My '96 Sport command-trac 4 spd
auto did that when I first got it, and then the problem went away ...
unfortunately I didn't pay any attention as to what or when that clunk went
away ... but it's gone.

> Sometimes when i come to a stop there is a thud type of sound coming
> from the rear of the truck. It's not super loud. Even less noticeable,
> probley only i would notice is taking off only sometimes there seems to
> be a bit of *clunk* noise as well. Any ideas would be great.