Here's a spreadsheet I've had on my computer for a while. I've made some tweaks to it, but I thought I'd share it with you guys. The MPH at the top of both tables can be changed as well as all the gear ratios, tire size and RPM limits. Enjoy.
One file has both ZF-6 tab and Alli tab this is set for puller MPH
http://www.dieselplace.com/forum/showthread.php?t=187880
One file has both ZF-6 tab and Alli tab this is set for puller MPH
http://www.dieselplace.com/forum/showthread.php?t=187880