« Reply #1 on: September 03, 2008, 09:47:15 PM »
Sidekick or Samurai? 5 speed or automatic?
On my Sidekick with a 5 speed, I'm running 31's and it holds its own capably off road. I wouldn't mind running 33's for some more clearance, but I'm only running 3.5" of total lift so I could probably just lift it a little more. Most people stick to 31 or 32" tires because any bigger than that and you start breaking stuff. The other part of the problem is the gearing gets thrown WAY off when you go up in tire size. A 31 is already 5" bigger than stock and you definitely notice the power loss driving anywhere. Anything resembling a hill will require a downshift to 4th or 3rd gear, and that's with an exhaust helping things out a little.
Rock crawling ability really sucks big time with anything bigger than 29 so you will want the 4.24:1 t-case gears. If you want to run 33's either go with an automatic because they run 4.62 diff gears, but 5-speed diff gears (5.13:1) bolt right in so you get some gear reduction back for on-road driving. You'll probably still want the lower transfer case gears for 4wheeling though.

Logged
97 Sidekick 4door 5 speed, 1.5 spacer lift, 2" body lift, CJ rims, locked rear, 31's, 4:1 low <SOLD>
01 Vitara 2.0L 5 speed, 2.5" Calmini lift, 2" body lift, Sidekick rims, locked rear, 31's, 4:1 low, 5.13 diffs <SOLD>
03 XL7 2.7 5 speed, 4.5" AE lift with OME springs, 2" AE body lift, 5.13 diffs, 3:1 low, 235/80R17 BFG AT's on Ultra 17x8 with 1" spacers, skid plates, Balmer Fab front bumper