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Thread: What type of gear ratio should i put in my t.j.?

  1. #1
    Join Date
    Mar 2012
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    chandler
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    18

    What type of gear ratio should i put in my t.j.?

    Hey guys I have a 98 tj and im pushing 33x12.50 right now but hoping some day to possibly push 35s. I haven't touched the gearing yet but also hope to do that soon. the only problem is my lack of knowledge on this portion of my jeep. What gear ratio would you recommend? what Brand? AND MOST IMPORTANTLY WHAT AM I LOOKING AT PRICE WISE? thanks

  2. #2

    Re: What type of gear ratio should i put in my t.j.?

    http://www.southwestpowersports.com/GEARCHANGE.HTML

    http://www.yukongear.com

    I would call a shop to get an idea of how much it costs.
    Last edited by gearhead; 08-16-2012 at 03:16 PM.

  3. #3

    Re: What type of gear ratio should i put in my t.j.?

    Get a hold of Andrew at Letzroll Offroad and he will hook you up.

    He is jpcrawleram on here. You will also find him on the small business forum.
    04 LJ.......Pics and Videos http://hilltopcreepers.com/

  4. #4
    Join Date
    Nov 2010
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    Ahwatukee
    Posts
    3,278

    Re: What type of gear ratio should i put in my t.j.?

    What axles are you running? I would get 4.88 so you are ready for 35s. Call Andrew at LetzRoll for the best pricing.480.797.0469

  5. #5
    Join Date
    Jun 2008
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    Gilbert, Arizona, United States
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    2,877

    Re: What type of gear ratio should i put in my t.j.?

    Manual transmission or automatic? Daily Driver or mostly offroad?
    Currently Jeepless.....

  6. #6
    Johnston...you will find alot of material on the web about this topic. You will get so many answers that you will have no idea which one to choose.

    I have 4.88 with automatic and 35s and I love it.
    04 LJ.......Pics and Videos http://hilltopcreepers.com/

  7. #7
    Join Date
    Sep 2009
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    apache junction arizona
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    8,049

    Re: What type of gear ratio should i put in my t.j.?

    i agree with BKTJ,,,,, with out to much info youd end up with a lot of diff answers! if im not wrong you should have 410s as of right now! and with 33's your probbaly gettin by ok but going to 35's might be a drag!
    Im back to the drawing board
    STAY TUNED!

  8. #8
    Join Date
    Jun 2005
    Location
    Queen Creek, Arizona, United States
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    4,721

    Re: What type of gear ratio should i put in my t.j.?

    Quote Originally Posted by azgypsy1234 View Post
    i agree with BKTJ,,,,, with out to much info youd end up with a lot of diff answers! if im not wrong you should have 410s as of right now! and with 33's your probbaly gettin by ok but going to 35's might be a drag!
    He could have 4:10's if it's a stick or a 4 banger, but auto's were usually 3:73 stock.

    3:73's work with 33's fine on the 4.0; kinda sub par on the 35's, but I manage.
    man without a jeep

  9. #9
    Join Date
    Jan 2006
    Location
    TEMPE, AZ
    Posts
    1,089

    Re: What type of gear ratio should i put in my t.j.?

    What tranny and current gear ratio play a big factor.

    With that said we have the best selection (including Dana Spicer) and prices available, fully licensed and insured full service shop in town and decades of experience. Give me a call!


    Barry
    602.273.7195

  10. #10
    Join Date
    Jan 2007
    Location
    East Mesa
    Posts
    1,765

    Re: What type of gear ratio should i put in my t.j.?

    One other thing to think about is what rear axle you currently have. The majority of TJ's came with a Dana 35 rear axle which is notoriously weak. It barely holds up to 33's and mild wheeling. So you may need to look at a new rear axle at the same time. The Explorer 8.8 is the most popular replacement and is RELATIVELY affordable. For 35's, I would not go any less than 4.88's and would chose 5.13's if its an option.
    It's like an LJ... only bigger.

  11. #11
    Join Date
    Mar 2012
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    chandler
    Posts
    18

    Re: What type of gear ratio should i put in my t.j.?

    OK guys first off thanks for all the responses. My jeep is a 6 cylinder manual trany. I believe i have the stock axle and what ever gear ratio is stock also. pretty much my 5th gear is useless with the 33s unless im going down hill! like i said id like to move to 35s someday and id like to use my 5th gear to help me out on gas. thanks again

  12. #12
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    Jun 2008
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    Gilbert, Arizona, United States
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    Re: What type of gear ratio should i put in my t.j.?

    It's going to cost you about $1000 to regear front and rear. But many people will tell you not to invest $500 in the stock rear axle D35 - especially with the bigger tires. Personally, I would go with 4.56 or 4.88 and replace rear axle with D44 or Ford 8.8. As long as you are regearing, you might as well put a locker in the front while you are in there. I'd say for everything you will spend $2500-$3000 for axle swap, gears and locker. But money well spent if you are planning on 35s off road.
    Currently Jeepless.....

  13. #13
    Join Date
    Nov 2010
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    Ahwatukee
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    3,278

    Re: What type of gear ratio should i put in my t.j.?

    Easy way to tell what your rear axle is. Look are the rear pumpkin. Does it have a rubber plug or a metal plug. Rubber-Dana 35 POS. Metal=Dana 44 . Personally I wouldnt put any $$ into the D35, as it will not hold up to 35s. Depending on the mods on your rig you would likely be better selling it and buying something built. Something like this http://www.virtualjeepclub.com/showt...97-TJ-For-Sale

    You can also use this image to figure out your rear axle.


  14. #14
    Join Date
    Jul 2011
    Location
    Scottsdale
    Posts
    65

    Re: What type of gear ratio should i put in my t.j.?

    Consider how you plan to use your jeep, mostly DD or more offroad? most 6yl 5sp mt came stock w/ 30" tire and ran 3.73.
    Want the same rpm's and mileage w/ 35's, use 4.56. Or go a little deeper to 4.88 ifmore offroad use.
    Get the most out of your regear and do it once, you could always swap a 4-1 transfer case later too.
    Regear front w/ locker @ $1400.
    Same for rear plus a new 8.8 or D44 add $750. PLus add if 4340 axles are needed.

  15. #15
    Join Date
    Jun 2005
    Location
    Queen Creek, Arizona, United States
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    4,721

    Re: What type of gear ratio should i put in my t.j.?

    If you have the stock d35 6cyl 5 spd your running 3:07's and that is why you have no power in 5th.

    Re-gear it with 4:88's. If you can get a d44 in the rear, do it!
    man without a jeep

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