Originally Posted by Biginboca

If 37's is the end game I think you can make factory axles work. Need to stay as narrow as possible (4.5" backspace wheels can work if you are willing to make clearance and adjustments.). Upgrade axle shafts and expect to bend rear flanges, which won't leave you stranded but is annoying. Upgrade ball joints to aftermarket when they fail early. Upgrade brakes cause the factory ones won't cut it. Truss and gusset the front axle. Weld the tubes on the rear axle. Regear to recover the power you lost. Be smart don't bounce rig and pull cable if you can't make an obstacle in a few tries. Once you have done all this you'll be where I have been for the last 4 years. No breakage but a few bent flanges. And wondering why you didn't save your $$ and buy better axles instead of dumping $$ into weak ass 44's... lol If you want to run anything over 37's do not pass go sell Rubi axles and move to Dana 60's/14B/Sterling. Even running 38's, and especially 13.5" wide ones, you are outside what's sensible.