Looking for input on daily driving with 35's vs stock Rubi tires
07-31-2014, 07:18 AM
#21
JK Enthusiast
I've got a 2014 polar edition and at the end of the summer doing the works to do, lift, rims, tires and re gearing. It's my daily driver and I literally drive 60 miles in a day just for work. I'm looking at just a 3inch lift and probably just 33x10.5x18. It's an automatic. What kinda of gearing should I get? I don't drive fast, the fastest I will go is maybe 70, I'm never in a rush, I like to just sit back and cruise!
07-31-2014, 07:20 AM
#22
JK Enthusiast
07-31-2014, 07:43 AM
#23
JK Enthusiast
Join Date: Jun 2011
Location: Upsate NY
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Flaspaq! Not a substitute for gears but defiantly helped by 09 JKU auto with 373s and 34" tires. More of a gain with an auto as it fixes the shift points. Gained about 1.5 mpg.
07-31-2014, 05:00 PM
#24
07-31-2014, 07:30 PM
#25
Regear. You won't regret it and your MPG will go back up. Performance will go way up, especially in 4-Lo and crawling.
07-31-2014, 07:32 PM
#26
JK Enthusiast
I have a 07 with 35's, 5:13 gearing. Great gear ratio, helped my fuel some, but anytime you put a 2-3 inch lift and 35's your fuel economy is going to tank.
On the Plus side, you can see over all the new cars or drive over them if you have too.
On the Plus side, you can see over all the new cars or drive over them if you have too.
07-31-2014, 09:47 PM
#27
JK Enthusiast
Join Date: May 2013
Location: Seattle
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This is a product of gearing. Keep in mind that wind drag coefficient is exponential rather than linear. Gearing can be such that it optimizes acceleration at lower speeds over cruising at higher speeds. It is akin to moving a fulcrum in relation to a lever. Tuning in one direction or the other will result in gain AND loss. Move it closer to the load and it will lift more mass but not as far. Move it further from the load and it will travel farther but with less power. When choosing a gear ratio your first consideration should be to determine what your goal is based on your particular application. Heavy rig, crawling, lots of steeps, towing, city driving, choose a numerically higher ratio (= or greater than 4.56). Light weight, flat lander, setting the cruise control at 75mph, slightly lower (=<4.56).
