been on 35's and 4.10s daily driven in 2 different trucks. 81 p'up, 22r, welded rear. started on 36tsls and that sucked, switched to bfg km1. didnt pay attention to the tire wear and only time i really noticed it was in the parking lot.
then switched to bfg km2s and noticed how much tire wear i was actually getting from the spool. it quickly wore the leading edge off the center lugs(8" wheel), whereas my fronts still looked brand new. but offroad traction won out so i kept the spool in. i put in a marlin clutch (1600) that helped a ton offroad and in-town driving. stock birfs held for a long time but passenger side is "clicking". 1 set of spares then longs.
now in my 87 runner SAS the 22re seems to do a lot better job with the 4.10s and 35s. spool is NOT going back in. not practical in a DD. i am saving for aussies at least. duals on the ups truck. 37s next year and i will stick with the 4.10s and do some motor mods. mostly because the guys i wheel with have 4.10s and spare 3rds are really cheap around here.