Originally Posted By 67vertman
Originally Posted By thehemikid
Hey 67vertman, how do you like the 4spd OD so far?

I see the 4 is 20%, where the 5 is 30%.

What rear gear are you running?



Hi H-Kid,

I really like the OD, with 4:10 gears, it cruises very nicely down the freeway. Even transition from each gear, with no lag or major drop in RPM. Mostly around town, you don't even use 4th gear. One thing I miss from the original geared trans is the lower 1 and 2 pull you get. But once the 5sp comes in I will have the best of both worlds.



How tall is your rear tire and what RPM are you at 60 mph? I would love to have a 4 speed OD manual for my Duster, it is 500 inches so the gearing in 1st gear wouldn't be an issue.
I'm thinking the full conversion from auto would be pricey though with pedals and shifter and everything.


1970 Challenger, all aluminum 528 Hemi, HDK suspension, Tremec 5 speed manual