Originally Posted by cory07ranger4x4
ok I got a good deal on a newer d30 with chromo shafts... That should be good up to 42-44" tires right??
Short answer no, for long answer:
HP D30 unlocked stock shafts (297 joints)
35s OK with some breakage if you spare the skinny pedal
33s Good if you are liberal with the skinny pedal, may still break it so spare shafts are a good thing to carry
HP D30 Locked stock shafts (297 joints)
33s good if you spare the skinny
31s if you beat your junk
With alloy shafts the weak spot moves from the ears on the shafts to the carrier and gears. This is a much harder trail fix. That why I did not bump up the tire size with the alloy shafts. It just gets more expensive and harder to trail fix. There is some benefit with alloy shafts for reliability but not much because instead of shafts you are now breaking gears and carriers.
HP D30 unlocked alloy shafts (297 joints)
35s are OK if you spare the skinny pedal. Less shaft breakage
33s are OK if you are liberal with the skinny pedal... maybe still some breakage
HP D30 Locked alloy shafts (297 joints)
35s are OK if you spare the skinny. Some breakage still expected
33s if you beat your junk. Some breakage still expected
Rocks vs Mud. Running in rocks will tend to break stuff vs running in a loose sloppy mud or sand. Take 2 inches off the max tire size if you are running in Rocks or Rock piles.
About beating your junk…. If you are trying to break something it is pretty easy to do…in a moment of insanity brought on by too much testosterone, I ripped teeth off a D44 R&P and put holes in the diff cover as the teeth tried to leave the diff housing.
(Who knew that would happen if I try to do wheelies with a V8 CJ5, it only had 31’s… OK 31x13.50 on 12-inch rims aired down to 5 PSI…OK it was a hot sticky kind of day where the pavement was oozing black tar all day this was in the evening as it began to cool down. The pavement was literally sticky like a cheap movie theater floor… I did do one hell of a wheelie though. For a little bit.)
Anyway I got what I deserved for that amount of stupidity with the skinny pedal. If you are trying to break something you will normally find a way to do it.