37's and Dana 30
*Not to take this off topic*
I would absolutely gusset at minimum... The larger tires give tons of leverage on the axle C's. I bent my axle on 35's, just from pot holes and light New England trails... Cheap insurance & assurance...
And x2 to what ryan above said. I would get gussets for your Cs for sure. Im doing the gussets and sleeves real soon.
Thanks for all the replies. They are all very helpful. I am getting the C-gussets, however I am still unsure whether or not to regear. I suppose I will try the 37's with the 3.73's and see how it does. If it's totally unbearable than I will most likely go to 5.13's. Keep the information coming.
I can't imagine running 37s with stock gears. My 08 (auto) struggles up hills with 5:13 s and 35s. I think re gearing is worth it for your transmissions sake even if the opinion is the jeep has enough power with stock gears.
The chances of axle failure are much higher using a D30 with this setup. This is due to the small R&P gear on a D30.
Ok. So, what I think I may do is for the time being run the 37's on road with the 3.73's. And then in a couple weeks, buy 4.88's. I have a '08 JK 2-door, D30/D44, 3.73's automatic transmission. I am going to be running 37/1250R17. 4.88's or 5.13's? Again, thanks for the replies. Any information is helpful.



