Overdrive Options

I have a gear vendor in my ol' silver Duster....I like it. It probably can be done without major modification.....but the motor/trans angle is gonna be steep. I opted to modify the floor pan/tunnel just behind the transmission crossbrace/mount.....very simple and the carpet hides the modification well. By keeping the motor/trans at the stock angle, there is no need to re-do the pinion angle on the rear.

I have appx 29.75 tall rear tire. 4:30 gear, and can cruise around 70-75mph @2200-2400rpm.....the sweet spot.