I'm using the 318,904 and rear out of a 79 LeBaron. I guess the newer overdrives are out of the question as I already have the trans mount welded in. The car is basically going to be a cruiser, maybe pull a 13 ft single axle camper if I get one, budget is really tight(laid off). I'm a u-pull-it kinda guy. I believe the 904 that was in the LeBaron has a lock-up converter, not sure as I haven't seperated the motor from the trans yet. I need to rebuild it anyways as my dad forgot to hook the kickdown linkage back up when he put the new carb on and smoked the low, reverse band . What did the A999's come in? Thanks later shawn