4.0, AX 15, 140k, just bought it a week ago. when I take off in 1st gear there is a loud clicking/clunking sound coming from the driveside front end. It seems to come from behind the dash/firewall but today I heard it in the passenger side also, simultaneous thuds. It's worse when it's cold, the pass. side stopped after a few feet. It's not coming from the trans. I am in 2 wheel drive. It sounds like the front drive shaft is hitting the skidplate, its not, the U-joints are tight, but it only does it when I start from a stop in 1st gear and like I said, it sounds like it's behind the dash. It does'nt do it in any other gear other than 1st. Any ideas?