BEVAN
Adventurer
35" SS Trxus's MT's, on a 15x10" rim. I wheeled the heck out tof the Jeep, and daily drove it... Never, ever a problem in five years of driving!
With an auto, and some driving sense (read, "oh, I can make it", pedal to the floor style drivers get some 60's, reinforce the unibody, build an interior cage etc., etc...) your 8.8, or better yet, sell that sucker and get yourself a bolt in 29 spline 8.25, will do just fine up to a 35's.
Changing axle shafts is easy work for most Jeepers. AND, I'll bet that spare shaft will sit back there taking up space and collecting dust.
Quit worrying about that rear axle, go get a bolt in 8.25, throw your 31's on there, and go wheeling. Truely the best money spent, is on; Lockers, especially manual ones like the ARB for the front, a winch, tools, and some spare shafts and u-joints. A pic of my old girl... miss her!
yup...I ran 35's for years on my 27 spline 8.25-it died from water and diff fluid mix...Thats why I have a 29 spline in there-I went to 33's for the extra piece of mind with lockers, price difference and on road manners.