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What gear ratio to choose?

Discussion in 'Early CJ5 and CJ6 Tech' started by BlueFlu, Oct 11, 2004.

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  1. Oct 11, 2004
    BlueFlu

    BlueFlu past owner of some ecj5's

    Hermitage, TN
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    OK, I have 4.27s in now, but I have a 27 & a 44 with 5.38s.
    the engine is a :hurrican: (134).
    The front axle thats in it is a 27a the other is a 27.
    It will be mainly a trail Jeep so street driving will be very little.
    It will have 33s on it.
    Which would y'all run? :?
    I'm leaning toward the 5.38s just for the pure grunt of lower gears but dont want to regret it, ie less wheel spin in the mud :rofl: .
     
    BlueFlu, Oct 11, 2004
    #1
  2. Oct 11, 2004
    jd7

    jd7 Sponsor

    Nacogdoches,Texas
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    It's not that you'll spin less in the mud, your just gonna have to shift sooner. ;)
     
    jd7, Oct 11, 2004
    #2
  3. Oct 11, 2004
    willysnut

    willysnut Banned

    Newnan, Ga.
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    Go fer the '38s cause there low. It will help the whining hurricane climb a lot better- ask me how I know.
     
    willysnut, Oct 11, 2004
    #3
  4. Oct 11, 2004
    Project71-5

    Project71-5 BACON

    Gypsum, CO
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    Jerry I would definately go with the 5.38's.
     
    Project71-5, Oct 11, 2004
    #4
  5. Oct 11, 2004
    jpflat2a

    jpflat2a what's that noise?

    Hermosa, SD
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    I'm a fan of 5:38s also
     
    jpflat2a, Oct 11, 2004
    #5
  6. Oct 11, 2004
    Glenn

    Glenn Kinda grumpy old man Staff Member

    Apopka, Fl
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    5.38s are my choice. ;)
     
    Glenn, Oct 11, 2004
    #6
  7. Oct 11, 2004
    Mcruff

    Mcruff Earlycj5 Machinist

    Albertville, AL
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    Go with the 5.38's, I don't think you'll regret it!!
     
    Mcruff, Oct 11, 2004
    #7
  8. Oct 11, 2004
    Boyink

    Boyink Super Moderator Staff Member

    Tulsa, OK
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    Sep 20, 2002
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    Heh...I have 5.38's and wanna go back to 4.27s....but totally different picture -- V6 power, more street use, granny low 1st gear anyway, and the 4.27's are in rebuilt axles with PowrLoks...

    For a :hurrican: trail rig the 5.38's are definitely a better way to go...
     
    Boyink, Oct 11, 2004
    #8
  9. Oct 11, 2004
    BlueFlu

    BlueFlu past owner of some ecj5's

    Hermitage, TN
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    Thanks guys. :)
    Thats the push I needed.
    Now to start saving for lockers front and rear. :rofl:
     
    BlueFlu, Oct 11, 2004
    #9
  10. Oct 12, 2004
    Posimoto

    Posimoto Hopeless JEEP Addict

    Minden, Nevada
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    Consider using a Powerlock limited slip in the front instead of a locker. You get great traction, especially with the rear locked up and you can still steer the damn thing. I wouldn't have a locked front if someone gave it to me. Just my .02 I also run 5.38's
     
    Posimoto, Oct 12, 2004
    #10
  11. Oct 12, 2004
    SandhillMike

    SandhillMike Moderator

    Archer, Fla
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    Oct 25, 2003
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    On my 66 (which ultimately will be the Jeep I keep) I'm going with 5.38's. D30 front and D44 rear, with a V6. I have an OD to make the street a little more comfy.
     
    SandhillMike, Oct 12, 2004
    #11
  12. Oct 12, 2004
    Project71-5

    Project71-5 BACON

    Gypsum, CO
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    Locker in front and steering? Thats why they made twinsticks ;)
     
    Project71-5, Oct 12, 2004
    #12
  13. Oct 12, 2004
    BlueFlu

    BlueFlu past owner of some ecj5's

    Hermitage, TN
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    Yea you just have to remember to place it back in 4wd. R)
     
    BlueFlu, Oct 12, 2004
    #13
  14. Oct 12, 2004
    blevisay

    blevisay Oh Noooooooooooooooo! Staff Member

    Portland Tn.
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    5:38..........Thats what Animal runs!
     
    blevisay, Oct 12, 2004
    #14
  15. Oct 12, 2004
    SandhillMike

    SandhillMike Moderator

    Archer, Fla
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    Well hey, if it's good enough for Animal it's good enough for every Jeep. :) :twisted:
     
    SandhillMike, Oct 12, 2004
    #15
  16. Oct 12, 2004
    blevisay

    blevisay Oh Noooooooooooooooo! Staff Member

    Portland Tn.
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    YUP!
    :D
     
    blevisay, Oct 12, 2004
    #16
  17. Oct 12, 2004
    Kodiak12060

    Kodiak12060 Sponsor

    Beacon NY
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    Jeep made 6.17's for the Willys pickups!
     
    Kodiak12060, Oct 12, 2004
    #17
  18. Oct 13, 2004
    BlueFlu

    BlueFlu past owner of some ecj5's

    Hermitage, TN
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    OK so one more ? am I looseing anything by swapping the 27a for a 27? The joints are differant no ? How much stress will the 27 take?
     
    BlueFlu, Oct 13, 2004
    #18
  19. Oct 13, 2004
    BlueFlu

    BlueFlu past owner of some ecj5's

    Hermitage, TN
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    That'd be a tad to low I'm afraid. ;) I still want to drive it on the road some. :D
     
    BlueFlu, Oct 13, 2004
    #19
  20. Oct 14, 2004
    speedbuggy

    speedbuggy Looking for a Jeep now

    Living the Good...
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    5.38 in Speedbuggy. I will need to add OD to it. She winds up pretty good at 55mph, but I like the low gearing
     
    speedbuggy, Oct 14, 2004
    #20
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