jlmo

Does the Procal bring everything back to normal by adjusting the tire size?
Thanks!

scrappy

pretty damn close I'd say. I didn't have the procal done close enough to having the stock 32s to know for sure. BUT, I do know the 34s definitely felt a little bogged down, and the shift points changed significantly. After adding the procal it felt much much better.

When doing 70 mph without procal I was pushing 3,000 rpms... after procal I was back down to the 2,000 range, very close to stock range.

Halas

You need that or a SuperChip.... The wrong tire size is putting a lot of wear on your tranny with bigger tires on.

Wandell

I've been running 33's with an AT and 3.73's in our JKU since we purchased it last summer. Performance is ok but not great. Whenever I tow my 6x10 utility trailor and dirt bikes I turn my overdrive off.

gunbo75

i am running 34"toyo mt with 373 auto its ok

CJ7nvrstk

The King has spoken and the minions are silent!

For clarification, this is not by any means a shot at you WOL. Recently, I was pounded mercilessly on here on a gear and tire thread suggesting some of the advice given on here regarding gearing was not the best. I was saying that regaring too low can be harmful and presented supporting evidence which was ignored. It was even suggested that with 33s you had to go to 5.13s. I just think it's funny that those so called "experts" are mysteriously absent on this thread after you posted this.

So please do not take this as a shot at you or this site.

Back on topic, as previously mentioned, you will be fine with that. You may want a little more get up n go though with the help of a tuner or some other type of power adder.

JK UNLIMITED

5.13 gears for a 33" tire...WTF...you would be redlining on the freeway

CJ7nvrstk

That is what was suggested from one of the forum members who is very highly respected here but certainly doesn't like it when others don't conform to his line of thinking. And then there are the self proclaimed experts who claim to have more knowledge about our Jeeps than those in the auto industry who actually designed and built them.

jhol111964

I can't see that. I ran 33's on a CJ with 3.73's, and it was a 3 speed. I ran 32's all this summer with my JK 3.21's. 6th gear was lousy though. I just ignored it and treated 5th gear as necessary to keep the rpm in the green or close.

hiddenprey

I have been running my 35"s with 3.73 for a few months now, It is ok but i am re-gearing within the next month. with that said i was running 33"s for a few years and not a single problem.