i have been hearing a popping noise from under my truck and i beleives its my transmission and it has been getting louder everyday, it happens when i let off the gas and start to stop, then when i start to go again the rear end kinda bounces a little bit. the transmission is under warranty but i want yalls advise before i take it and have to pay that deductable and it not fix anything. let me know what yall think.

 

Are the U joints OK?