Scoots340
Member
Looking for OD in my 70 Duster 340 3 speed manual. Wondering if anyone runs the Passion Hemi overdrive and what it took to install? Need one more gear that's not 1:1 since the interstate is 70 around here.
with a 451 big block. Works great and with 3.73 gears the car gets 20 mpg (if you can keep your foot out of it.) You may be lucky and your 3 speed bell housing may have both pa
He will also build you a 23 spline if you want to use the clutch set up you have.