Hey guys, need some help!

At any given moment I shiftin reverse, the truck willnot move, it will move ifI apply some gas and then it kicks in. It will kick in as hard as the ammount of gas I give it, sometimes I'm afraid it will brake a u-joint.

Any comments on how to fix this?

BTW it also takes longer to shift from 2nd to 3rd gear, other than that is a very sweet *** truck..

help please!

 

my truck seems to slip really bad in reverse unless you let it warm up for about 10 minutes, it only does it if the engine is cold, the tranny is brand new though,
try adding some lucas transmission stop slip to it and see if that helps, lucas is the best there is.