Originally Posted by Michael_l
I'm in San Diego, so thankfully I have the mecca of all off road shops near by and I'm working with a couple of them. One of them pulled the bearing journals part numbers from a Dana 70 and confirmed they are the same as the Dana 60, so he's thinking they 35 spline axles should slide right in. In other words, the housings, bearings, and assembly are the same from Dana 60/70.
The $650 equation is whether the axles slide right in. I would/will call the axle supplier (Yukon) as well as the
The supplier of this tool for when it is applicable/necessary. If the Dana 60 needs broing to fit a 35 spline vs 32 then that is kinda a deal-breaker for me. That pushes the cost to $2000+ and the ARB locker is looking much better since I already have on-board air.
Based on a simple rule of thumb that stiffness strength goes to the third power then relative to a 1.46" 32 spline, the 1.5" 35 spline is 8.5% stronger all things else being the same. If the new axles are Crome-moly or other treatments to increase strength then that would also have to be accounted for.
I'm figuring for an AT 265/70-17 tires and 2WD, the ARB locker on the 32 spline is going to be sufficient for most desert/sand service. I'm from AZ so I probably will not see much snow and ice.
From reading the other posts, if you plan to drive more in snow and ice then the versatility of the TrueTrac/LSD gives you better handling in most cold weather (snow/ice) roadway driving conditions where your locker would be off. My conclusion is the locker is best for a 2WD in the desert.