Posted: Sep 27 2009 at 5:23am | IP Logged

Hi all.

I am new here.  I have an 04 Crew Cab long bed I purchased in Nov. 08.  I like the truck a lot.  I noticed whenever I shift into 4W high on the fly (manual says OK up to 40 MPH) I get a *VERY* loud clunk from the front diff.  Is this normal for this truck?  In the meantime I am only shifting in to 4W "not on the fly".

Thanks,  All help is appreciated.

Posted: Sep 30 2009 at 12:09am | IP Logged

It still happens with plenty of throttle release.  Maybe it is the hubs.  I was accustomed to the locking hubs on my toyota (89' FJ-62).  It really sounds like a loud "thunk" coming from either the tranfer case or front diff.  4WD works fine, but the noise sounds like a parts failure waiting to happen.  I have heard similar "thunking" on older 4x4's (think CJ-5 or old powerwagon) but this bothers me more than that did.   

I will probably not be shifting on the fly very often...

Thanks,  Mark.