37's on 6" lift?
03-26-2009, 09:37 AM
#11
Truck & Car Hobbyist
Totally Awesome! Do you have any more pics of that ride?
03-26-2009, 09:46 AM
#12
Senior Member
The taller you go with the tires over 35 inches the more you will need to re-gear, also a custom tuned programmer will help also. 4.56 or 4.88's are the most common lower gear's to go with. Heavier tires also take a toll on your brakes also. Expect 12-15 mpg at the best with a lifted 4x4. If you plan on doing a lot of highway or city driving I hope you have a large bankroll, and that's just for gas!!
03-26-2009, 04:07 PM
#13
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It's not the lift that makes the gears needed, it the size of the tires. So even if you could get 37s under a six inch lift (which I dont know if you can) you are still gonna need to change the gears.
05-28-2015, 02:26 PM
#15
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I have a 05 f150 I am running 35"s for now I'm looking into putting 37's on but I regeard my truck with posi 4.56's front and rear to accommodate my tire size etc, with my 3.73 I was getting 10-12 mpg less power couldn't mud lacked power etc, with my new gears I am getting 15-17 mpg my power is back and couldn't be happier, so yes you will have to replace gears, and the angle of the drive shaft etc
Last edited by Special907; 05-28-2015 at 02:27 PM. Reason: Adding more
05-30-2015, 01:06 PM
#17
Senior Member
i ran 37s on a 6 inch before i installed the full suspension kit. this set up was 3" level kit and 3" body lift with an add a leaf in the back. -13 offset on the wheels