What size tires?
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JK Newbie
Joined: Mar 2010
Posts: 19
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From: Raleigh, NC
What size tires?
Have not had this Jeep long, added a few things so far. Already had a lift kit on it with a body life as well. I have measured, and measured and asked a few places how big of a lift it was... seems to be about 4 inches. What size tires should I get? 35's or 37's? Just got in Blackrock 17" wheels to mount the tires to. Thanks for all your help! No idea how to post pictures on this thread
still if he's up in the air over 35's or 37's you know what they say...go big or regret it later.
Thread Starter
JK Newbie
Joined: Mar 2010
Posts: 19
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From: Raleigh, NC
thats my fear.... if I go 35's and hate it then I have to buy another set of tires. On the other side I do not want to sacrifice the ride (jeep is mostly for my GF, but I had to buy it for her and add all the accesories) :-) I just searched for 4" lift with 35's... doesnt look bad... Wish I could figure out how to post pics so you guys and take a look
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JK Super Freak
Joined: Sep 2007
Posts: 1,623
Likes: 5
From: Lawrenceville, NJ
32's to 35's is a change of about 8.6%
That means, for any given speed, your rpm will be ~8.6% lower (That's ~ 214 rpm lower if you USED TO BE at 2,500 rpm for that speed...)
If you go to 37's, that's ~ a 13.5% change from 32's.
(That drops you a total of ~ 338 rpm from 2,500)
The rolling resistance from 37's is also a lot larger, so it takes more torque to roll them...35's are not THAT much worse than the stock 32's.
So, 35's can be livable for stock gears, but you might be down shifting more to essentially compensate for the larger tire giving you a deeper overdrive.
If you live in hilly terrain, etc...lower gearing can be nice.
If you do 37's, you are almost a gear's difference in RPM already, so the downshifting is proportionally more required, especially when you factor in that they are much harder to turn in the first place.
Hope that helps!
That means, for any given speed, your rpm will be ~8.6% lower (That's ~ 214 rpm lower if you USED TO BE at 2,500 rpm for that speed...)
If you go to 37's, that's ~ a 13.5% change from 32's.
(That drops you a total of ~ 338 rpm from 2,500)
The rolling resistance from 37's is also a lot larger, so it takes more torque to roll them...35's are not THAT much worse than the stock 32's.
So, 35's can be livable for stock gears, but you might be down shifting more to essentially compensate for the larger tire giving you a deeper overdrive.
If you live in hilly terrain, etc...lower gearing can be nice.
If you do 37's, you are almost a gear's difference in RPM already, so the downshifting is proportionally more required, especially when you factor in that they are much harder to turn in the first place.
Hope that helps!
JK Super Freak
Joined: May 2007
Posts: 1,467
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From: Central Texas
I've got 33's on mine and my buddy (who has a 7.5" long arm lift) has 37's. I'd go with 53's with what you have. Unless you do a greater lift and re gear, 37's are overkill and you wouldn't be happy.