4 speed auto transmission

I am putting a 518 in my duster. I am using the ultra bell for the big block conversion. I paid $75 for a core and rebuilding it myself, I will have about $1500 in it ,including the ultra bell and upgraded parts. It is a non lockup and can use my 727 converter and shifter. Using PATC's kit that allows overdrive shifting automatically with pressure and vacuum switches.

Upgraded my planetaries, new ones on top. went to 5 and 6 pinion ones.