Leon,
a 3.90 rearend running 215R75-15 tires with a straight 1:1 high gear will yield 2936 RPM at 60 mph. That is how the math works out. A typical tire of that size goes 753 revs per mile.


1951 GMC 1 Ton Flatbed -- It is finally on the road and what a great time I have driving it!
1951 1 Ton Completed


My Chevy Master 4 Door is on the Road!