5072 is mid-June 1975 ('75 or '76 vehicle) - is there a VIN stamping? WAG no VIN = truck/van transmission?

IIRC the flipped lever on the shift fork resulted in a 1-2-4-3 shift where 4th is still 1:1 & third was the overdrive gear. shruggy

& I think all aluminum are overdrive, but not all overdrives are aluminum, again shruggy

bump