I bought my first diesel truck.It is a 1994 F-250 reg. cab with a manual transmission and i am trying to do most of the repairs and upgrades myself . Not a motor head like some but love a good challenge .
So i was told i have 4:11 gears in the rear . With the five speed transmission and 4:11 gears my truck is only doing about 60 mph at 2000 rpm . was wondering if somebody makes a six speed manual transmission . I would like to keep the lower gearing for hauling but more speed for highway travel if possible . suggestions welcome