I am gonna use your 'Read 'polyjohn and work on the 360 build for my 83 short bed stepside d150. I already have the small primary TheroQuad and stock intake, should I hunt down a set 2.76 gears or keep 3.23s? I had an early 4sp hyd automatic already built..it doesn't have the lockup TQ converter.. I will have to toggle switch top gear I understand when I want over drive? It's the smaller Chrysler automatic OD, but built with heavy duty parts...hope it holds up ok.