i have an A/T and when i put it in reverse and back up, the car makes a groggly/growlin sound....question is, is this a sound of my reverse/whole tranny about to go out...it seems to be gettin a lil worse.

 

probbably your trany, how many miles are on it? Could also be drive shafts. pray it's not your transmission I just got mine replaced for 2,700 without the core, if you replace your transmission be sure to replace your radiator. because the tranny cooler is in there and if your tranny is gone there is probably alot of metal in there, and that will significantly reduce the life of your new trany.

 

i got around 60k on my tranny...hope its not tha tranny...didn't know our cars came wit tranny coolers, thought you had to install one yaself!!