I based mine off my GPS. my speedo said 65mph at (tach) 3000 rpms. My GPS said 67mph.
36" hummer tires 5.29 gears, W56 tranny, Marlin 1200HD clutch and flywheel.
cool you went with the 1200HD you will not regret it.
Mike
Yea thanks dude I like it a lot. How many mpgs are you doing on the freeway? I need to get on buying 4.88s because my truck struggles to pick up speed.
