wheel speed

[06f250powerstroke]

Just trying to figure out final drive and wheel speed

36" tires 4:30 gears 4000rpm
Would like to know 3rd lo and 1st hi

Any help would be great thanks guys

 

[oilfieldtrash15]

https://wahiduddin.net/calc/calc_speed_rpm.htm

This will work for high. For low you will have to divide the rpm by the reduction for low along with the other reductions.

 

[06f250powerstroke]

It says 62 mph that can't be right

 

[06f250powerstroke]

Grim jeepers says 32 mph in 1st high and 24 mph in 3rd lo

 

[oilfieldtrash15]

The numbers you have from Grim Jeepers is what I am coming up with. 64 is for 3rd high at 4000 rpm. If you take 64 and divide it by the low range of 2.72 you get 24 mph for 3rd low if that makes sense.