My 41 1ton has the same tire size, 700X17 with a 216 and 5.14 gears it was screaming at 50 mph. I did not consider it safe on I 95. It would have been just a matter of time before somebody ran up my rear.

I went to 3.73 gears with a 700R4 transmission I get 70 mph at 2000rpm.

Not to mention what it will do for gas mileage.