87 XJ axles - hpD30 & D44

Discussion in 'SFA KJ' started by u2slow, Aug 14, 2012.

  1. u2slow

    u2slow Full Access Member

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    I found a '87 Jeep Cherokee Pioneer (L6, auto) that's going for cheap and/or parts.

    If I was going to harvest the axles and suspension for future Liberty mods, whats a decent price to pay?

    btw, whats a common XJ axle ratio with the D44? (can't find any tags)
     
    Last edited: Aug 14, 2012
  2. J-Thompson

    J-Thompson Full Access Member

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    Ratio will not matter with 33's on a KJ you will
    want 4.56's and as far as I know only H3's with the
    I-5 came stock with that ratio

    Now some will say that the HP30 is not strong enough
    I say nay to that as the HP30 holds 35's all day long
    You better check and make 100% that it has a 44 and
    not a 35
    Besides that I would pay $500-$600 max for those axles
    and all you need are the axles the suspension is useless
    to you
     
  3. tjkj2002

    tjkj2002 Full Access Member

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    Yeah under a light TJ.It would bent like a twig under my KJ that weighs at least 2500lbs or more then your TJ.No sleeving or gusseting required on my 1/2" walled HP44(HP30 is 1/4" walled).
     
  4. J-Thompson

    J-Thompson Full Access Member

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    Then why don't they bend under a V8 Grands?
    And the 1 I know of ran 33's for years
     
  5. tjkj2002

    tjkj2002 Full Access Member

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    I'm still over 2000lbs heavier then a V8 grand.
     
  6. J-Thompson

    J-Thompson Full Access Member

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    I am calling you out
    1 of 2 things
    You don't realize how heavy a grand is
    Or
    You don't know how heavy you KJ is
    Either way you do not out weigh a 5.7 grand
    at least the 1 I wheeled with ,Hansen bumper
    Winch ,skids ,sliders ,Clayton long arms
    2 batteries 2 AC compressors ,1 for AC and 1 for OBA
    Not to mention the "extra stuff"
     
  7. tjkj2002

    tjkj2002 Full Access Member

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    5.7 grand huh? No D30 in a grand with the 5.7,ever.I know how much my KJ weighs,it's been weighed and I also know how much a ZJ and WJ both weigh with both the 4slow and V8's.
     
  8. J-Thompson

    J-Thompson Full Access Member

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    I stand corrected
    He has a 4.7 not 5.7 ,it is an '02
    And the base curb weight is 4300#
    I know he is over 5700 because he had to get a new
    trailer due to axle and tire issues
    He had a trailer with dual 3500# axles
    His only issue was with the quadra drive t-case
    corrected with a 231
    But I am sure the KJ is heavier and would bend the
    HP30 ;-)
    He put the HP30 due to CV issues
    Not real sure what that was about
     
    Last edited: Aug 16, 2012
  9. J-Thompson

    J-Thompson Full Access Member

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    I love how your KJ gains weight to support your
    arguement
    You said a while back your KJ was 5500#
    Now it is 2000# over a 4300# Grand
    That puts you at 6300#
    I know what 6300# worth of truck is and I can tell
    you that the 3.7 will not pull that geared at 5.xx or
    not
     
  10. u2slow

    u2slow Full Access Member

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    My only preference for ratio was to possibly match the current 3.55 and get the axles in one at a time. The 6-speed manual is very forgiving. 1st gear was too 'short' with stock tires. Its usable now with 30" meats.

    I'll re-check the D44. It was an angular cover. The casting looked small for a D44, but I guess I'm used to looking at heavier ones i.e. 3/4-ton 4x4.

    My plan isn't to build an extreme ride - my wife drives it more than I do. Just want to have good stuff underneath that performs well for the odd offroad jaunt. I can't see going beyond 33" tires.
     
  11. tjkj2002

    tjkj2002 Full Access Member

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    By weight ticket was just over 6000lbs without the spare tire or hilift on,so closer to 6200lbs.My KJ was 5500lbs before the SFA swap when it still had IFS.
     
  12. tommudd

    tommudd Moderator Staff Member Moderator

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    If you even think of going to 33s even 32s you'll want 4.10s at least.
    The 6 speed may be a little forgiving but not that much . Bet 6th gear is only used on down hill runs if you run larger tires. yes I know of quite a few who have run 32s /6 speeds and switched and loved it afterwards
     
  13. Ry' N Jen

    Ry' N Jen Banned

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    Just to be Devils advocate here...
    We wheel with two friends that run Cherokees.
    Ones on 33's with 3:73 gears.
    The other (Heep) on 35's with 4:10's
    There's another fellow with a Heavy half, Big block, 44"s and he runs 4:10's as well!

    They all do really well off road!

    I find 4:10's with 31's too high still!
     
  14. tjkj2002

    tjkj2002 Full Access Member

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    BB's have alot of torque,2-3 times as much as the KJ so do not need as low of gearing to turn bigger tires.
     
  15. Ry' N Jen

    Ry' N Jen Banned

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    To the Op, remember that here in Canada; especially B.C (Bring Cash)
    everything is more expensive that anything U.S. State side.
    Hell, Alberta is even less costly the British Columbia. Sucks but it's true.
     
  16. DJSKJ

    DJSKJ Full Access Member

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    Yeah but the area is beautiful. Not sure if it is more expensive than California though.

    DJ
     
  17. Ry' N Jen

    Ry' N Jen Banned

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    Normal four bedroom home with no yard at all sells here in Richmond for $789000.0.
    To $1.35 million.
     
  18. Heep

    Heep Banned

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    old thread but most xj came stock with:
    D30, D35
    standards - 307
    auto - 355
    some came with 373 but its rare to see or i cant seem to find them

    D44 came 373 - 410 gears, regardless just check them. jack up the rear axle an spin the tire 1 rotation then count how many times the driveshaft spins an devide it together. if your gonna do axle swap then do D44, dont bother with the dirty 30 an 35, i was running 34' tires on mine an went through 3 D30 an 2 35s

    and with the 2 guys that are bickering about weight, my xj is 2200kg and Ry&Jen kj is heavier then mine which explains why your gas milage blows!!
     
  19. u2slow

    u2slow Full Access Member

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    3.55 is a perfect gear with these 30" tires. 6th is always used on the highway. 120km/h (says the speedo) @2500rpm. I do have to downshift for most hills, but that's pretty normal for a gas engine. I wouldn't want to lose top speed and economy with a lower axle ratio. Plus there's the carrier break to work around.

    This rig may get a diesel engine when the V6 packs it in.... at which point 3.55 is pretty ideal.

    The '87 XJ I looked at had the D44 rear... but I waited too long, and its now sold. Another option I've stumbled on is a small pattern 9.25" with 3.90 ratio. :D

    In light of the wife not wanting serious mods in the near future, I may just rebuild the front with a Tru-trac, and/or maybe take a stab at chopping up a spare 8.25" for a bigger IFS diff. (ala JBA style)
     
  20. tommudd

    tommudd Moderator Staff Member Moderator

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    Need to rethink , but its your ride :icon_rolleyes: