I have a 01 2wdlextended cab long bed when I leave from a stop it feels more like a thump or thud almost instantly when I give it throttle it does not seem to be bad or even there when its dead cold it has 62000 miles trans fluid flushed and rear end lube changed in last 7000 miles no change. I've read about some slip yoke problems out there the dealer tells me its got a very low 1st gear and its the shift.I think he's full of it.The truck is barely rolling when it happens.any ideas

I had the thud twice in 50K miles. I greased the splines in the front of the drive line both times. Both times it cured the problem. Later! Frank http://www.dieselplace.com/forum/smileys/Big Smile.gif