The old question of 35 in or 37 in
04-07-2016, 07:16 PM
#1
JK Newbie
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The old question of 35 in or 37 in
I have a 2014 Sahara with automatic tranny. I am currently running 35 12.50 18 Nitto Trail grapplers. I have re-geared to 4.88 and added lockers but haven't done anything to the Dana 30. I wheel pretty hard at Uwharrie 5 to 6 times a year with no issues. I'm thinking of going with 37 12.50 18 Pro Comp extreme 2 tires. They only way 6 more pounds than the Nittos. Want some advice if it will make a big difference in wear and tear or front axle issues from what I'm currently running. Thanks!
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04-07-2016, 07:59 PM
#2
JK Enthusiast
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It's not the weight so much as the diameter of the tires that makes the biggest impact. There is a lot to consider when jumping from 35s to 35s.
That said, repeat after me. "In Artec we truss!"
That said, repeat after me. "In Artec we truss!"
04-07-2016, 08:14 PM
#3
If you can do the work yourself and are able to fix it if something breaks then i say you will be fine. I wheel pretty damn hard and run heavy 37" mud grapplers on a dirty 30 I trussed and gussetted and I've yet to have problems, other than shafts break but those were due to extenuating circumstances.
04-08-2016, 06:27 AM
#4
JK Super Freak
What lift are you running now with 35s, and planning with 37s ? A 2.5" lift with 35s can use the stock driveshaft. With a 3-4" lift, the stock driveshaft can get over-extended --- at least this was true on 2007+ JKs, I presume is still true on 2014 model.
04-08-2016, 07:58 AM
#6
JK Freak
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I had 37's on a d30 that was built and had no issues, My buddy on the other hand had 37's on a mostly stock 30 and blew a u-joint on a speed bump doing less than 20mph. 37's on a d30 no bueno if you wheel hard.
04-09-2016, 04:31 AM
#7
Super Moderator
Truss it and keep stock axle shafts and driveshaft. I ran a D39 Ttussed with 5.13's and an Aussie locker and destroyed not front axle shafts. I knew it was a matter of time so I carried a replacement set. I have a buddy running 40's on his Dirty 30 with 5.13 and an Aussie locker and he just carries stock replacement shafts.
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04-09-2016, 05:02 AM
#8
Truss it and keep stock axle shafts and driveshaft. I ran a D39 Ttussed with 5.13's and an Aussie locker and destroyed not front axle shafts. I knew it was a matter of time so I carried a replacement set. I have a buddy running 40's on his Dirty 30 with 5.13 and an Aussie locker and he just carries stock replacement shafts.