I have a 2500 cummins that i pull trailer with, and I have 355 rears in it high range reverse is to fast for backing our gooseneck around. I want to know if there is anything you can install on my truck so that my hubs will only lock in in 4 low when i need them to. You cant use 4 low to back and turn on dry surfaces its too hard on the drivetrain. I know that i can buy lock out hubs but im trying to see if there is a cheaper easier way it can be done thanks

 

You also should not use 4W Hi on dry pavement, for the same reason.

 

sorry about the misunderstanding as in high range i meant 2wd

 

remove the front driveshaft and only install it when you need four wheel drive. PITA but cheap.