With most of the data that is out there, you are 100% correct. MOST of the research supports a D44 (with upgraded shafts) being good up to about a 37" under harsh conditions. Anything bigger, especially under a heavier rig, requires a heavier duty axle.96SportWheelin said:I'm not 4x4 expert, but I do read a lot of ORA Mag.. Um, according to them, are you sure that that d44 will hold up to those 39's? You might want to go with something a bit stouter up front. Just my two cents, hell I prob. dont even know what im talking about.. lol l8r
-Cody
But SO much depends on terrain traveled, style of driving, etc, etc, etc.
Would I run a 39" tire on a D44? Nope, but that is just me.