Tire gear Sanity Check -help-
I've ready many posts before I started this one, hoping for advice.
My 08 JKU is my daily driver that sees 120km per day on the highway 5 days a week.
3.8l with auto tranny and 3:73 gears.
I going with a new 17" wheel and Mickey T ATZs 33 x 12.5 x 17. No lift planned....maybe the TF 2" leveling kit.
AEV Procal at same time as new tires.
Will this slight increase in tire size make a huge difference to my highway commute I'm terms of power, upshift ect?
I think I saw some were here in stock form at 70 mph I should be 1850rpms...and going to 33" will decrease by 50 rpms
Not sure what that will feel like in the seat.
I don't think I need to re gear....33" will be max size for me.
Will drive line angles be ok with this?
Jeep is stock otherwise
Thanks advice and experience is much appreciated and respected
My 08 JKU is my daily driver that sees 120km per day on the highway 5 days a week.
3.8l with auto tranny and 3:73 gears.
I going with a new 17" wheel and Mickey T ATZs 33 x 12.5 x 17. No lift planned....maybe the TF 2" leveling kit.
AEV Procal at same time as new tires.
Will this slight increase in tire size make a huge difference to my highway commute I'm terms of power, upshift ect?
I think I saw some were here in stock form at 70 mph I should be 1850rpms...and going to 33" will decrease by 50 rpms
Not sure what that will feel like in the seat.
I don't think I need to re gear....33" will be max size for me.
Will drive line angles be ok with this?
Jeep is stock otherwise
Thanks advice and experience is much appreciated and respected
Drive line angles are not affected by tire change that small. My 13 Rubicon has 33s on it with stock wheel. I lost about 1/2 mpg total and no noticeable power loss. I also have Terraflex leveling kit installed. That may be reason for mpg.
Last edited by Dbmoorejr; Oct 30, 2012 at 04:32 PM.


