mag409
Sr. Member
I made up an excel spreadsheet with various tire sizes and gear ratios for the NP435 tranny. The output on the spreadsheet is MPH for the gear, tire size, and Engine RPM. You change the engine rpm to see different MPH. If anyone is interested PM me and I will send it to you. Its helpful when trying to decide on the proper combination. I can adjust the formulas for different trannies too.
