best bang for my buck?

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01-02-2011 | 06:29 AM

#11

CJ7nvrstk

JK Super Freak

Joined: Apr 2007

Posts: 1,258

Likes: 1

From: Prosper, TX

Quote:

Originally Posted by JayhawkJeep

Gears hands down. Programmers are good but nothing beats gears.

What he said!

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01-02-2011 | 06:56 AM

#12

w squared

JK Super Freak

Joined: Jun 2008

Posts: 1,116

Likes: 3

From: Calgary, Alberta, Canada

Quote:

Originally Posted by Camo

clear like mud, exactly! but asking is learning so I'm asking. Thanks for the response I guess his gas mileage is in the toilet. The 35's alone must hurt could not imagine 37s plus the gear change.

When it comes to modifying your Jeep, gas mileage is only an issue when the mileage between gas stations is more than you can cover on one tank.

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01-02-2011 | 07:19 AM

#13

jeepmedic

JK Super Freak

Joined: Jun 2009

Posts: 1,312

Likes: 1

From: Cashton, WI

Gears for SURE. You will relieve some stress on the drivetrain as a whole unit and will probably get some mpgs back as well. Then get a programmer for a little extra boost and fix your speedo.

It will drive like a whole new jeep...mine did !!!!

Check out this link for more info..

https://www.jk-forum.com/forums/show...?82262-Gearing

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01-02-2011 | 08:22 AM

#14

RIPPMODS

Sponsoring Manufacturer

Joined: Jul 2007

Posts: 1,189

Likes: 2

From: New York

Quote:

Originally Posted by rubimonster

I run 35's plan on going to 37's. Tow a camping trailer in summer which is near the max tow capacity of the jeep. Should I re-gear to 5.38's at a quoted price of $1600. Or should I take that $1600 and buy a quality chip or programmer, with a CAI and save some $. Maybe with the leftover $ I could put some towards a LOD rear bumper....finally. My guess is the most improvement in power gain is going to come from re-gearing. Any advice would be appreciated!

You will burn your trans up fast without regearing (auto). The 6spd guys get away with it because they have control of gear/speed. With air intake "chip" and exhaust on 35's you will be producing about 130-140hp at the rear wheels, at very least look into our Long tube header (don't wast any time or reflection on short tubes as they will produce nothing but headaches (the community can back us up here).

If you have the extra $$ just bolt on our supercharger and you will have an extra 100 hp at the wheels at your disposal, not to mention the 80-90ft/lbs of trq...

RIPPTECH

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01-02-2011 | 09:25 AM

#15

Tjensen

JK Newbie

Joined: Dec 2010

Posts: 1

Likes: 0

From: New York

gears deff. iwant to get a set for mine next

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01-02-2011 | 09:26 AM

#16

nthinuf

JK Jedi Master

Joined: Jan 2008

Posts: 11,463

Likes: 162

From: Austin <--> Colorado Springs

Quote:

Originally Posted by Camo

clear like mud, exactly! but asking is learning so I'm asking. Thanks for the response I guess his gas mileage is in the toilet. The 35's alone must hurt could not imagine 37s plus the gear change.

You would guess wrong.

An auto with stock gears and big tires means constantly lugging the engine at all speeds, and constant downshifts out of O/D, which means much higher rpm's to maintain speed, which means mpg's in the toilet. Gearing back to a 'better than stock ratio' (I say better than stock because auto JK's are undergeared straight from the factory), will relieve the extra strain on the drivetrain, bring rpm's up into the range where this engine likes to operate, and let's you maintain speeds without all of the downshifts out of OD. The net effect is better performance and better mpg's, not screaming high rpm's and worse mpg's...

You should open the drivetrain faq's and plug some numbers in...

The only downside to 5.38's may be OD 'Off' rpm's when towing heavy loads. Find your od on rpm using the chart, then divide by .69 to get od off rpm.

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