33's and the g56

[Cummins Cowboy]

For all you calculation guys what will be the 70mph cruise speed be if 33's where installed. 35's would prolly be better but I think that would cause a stability problem with the trailer I pull

 

[67guzzler]

CC,



You may enjoy this:



http://www.dakota-truck.net/TIRECALC/tirecalc.html



And this:



http://www.ricksontruck.com/calculators.html



Enjoy!

 

[Cummins Cowboy]

maybe 33's will give me what I am looking for I can handle 100rpm, so 70mph would roughly be 2100

 

[67guzzler]

CC -- I ordered some 315/70R17's (34. 8" tall) that came in today. Hopefully I'll have them installed this weekend if Katrina doesn't close down everything here in South Florida. Using the calculator I should go from 2200 to approx 2000 @ 70 mph.

 

[klenger]

If you have MS Excel, you can play with the numbers till the cows come home wth this worksheet. http://www.klenger.net/dodge/general-reference/gear-speed-calculator.xls