I have 4.10s in my ranger with the 4.0 and i wish it was a 4.33 or 4.56 because it just doesn't pull like stock anymore. and with towing id want a little deeper gear for help in the hills department, then again your diesel has just as much or more torque than my 4.0L so not sure what you might want in the front and back so its kinda your call get the 33's first and see how it runs/pulls the tires on hills and what not if you don't notice a difference then just stick with what you have. If it feels more doggy and like its struggling on hills then i would consider the gear swap
With the diesel I am not sure of what the axles are under but they should have a tag bolted to the cover that tells you what it is and current gear ratio and some other stuff
4.Fast..... going down hill
Last edited by Hanks Rangers; 10-30-2009 at 12:15 AM.