Dakota automatic transmission whine

From : rt

Q: my 01 r/t with the automatic does the same thing when i let off the gas and start decelerating with out the brake. it has done it since the 1st day i drove it off the lot. it sounds like a bad u-joint but the u-joins are fine and my rear has been checked 5 times because of it.. we finally gave up trying to figure out exactly what it is. i took it to 3 different dealers. half the time they could never replicate the problem. the 3rd time they took apart the diff and every thing seemed to look just fine but the noise continued every once in a while maybe once a day. lately i have started to think it might just be the tail gate moving... if you find out let us know.. -aaron i recently bought a 2001 dakota v-6 with 5-speed manual transmission. this is the 1st manual tranny ive had in about 10 years. heres the problem when i let the clutch out i sometimes hear a single klunk coming from somewhere in the drivetrain. it is most noticeable when letting the clutch out when making a turn. i took it back to the dealer and they said is was the backlash in the rearend and it was normal. and that it would stop occuring when i get better at using the clutch. is the dealer right does anyone else have this problem .