roosduster
Colorado Mopar
Does anyone know what the stock gear ratio from the factory a 1973 Duster with a 318 and a 8 and 1/4" rear end had?
ibleedmoparts said:i know the 2.76 was a ratio...the 7 1/4 i pulled out of my dart had that also i know there was a 2.94 as well...i had a 76 aspen with a 2.94 8 1/4 rear...ill have to look but i have an old a$$ manual with the housing size and available rear end ratios...more to follow...
plum360415 said:My duster came with 8 1/4 3.21 sure-grip. However it also had the 360 4 bbl. from the factory. I geuss one could probley get the 3.21 sure-grip for any eng. combo if the box was checked on the order form.
MY340 said:2.76 or 2.94 or 3.21 most likely. Pull the cover and count teeth to be sure. The early 8 1/4's have 27 spline axles and the later Dakota ones have 29 spline axles.