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what is this rearend

Discussion in 'The Garage' started by chevyin, Nov 29, 2005.

  1. chevyin

    chevyin 1/2 ton status

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  2. roadhawg

    roadhawg 1/2 ton status

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    looks like the old eaton rear ends.... i saw one on a 3/4 ton 71 pickup.
     
  3. 89GMCSuburban

    89GMCSuburban 1/2 ton status

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    Some of them are strong, but others aren't. I believe there were three types, all different strengths but the only way to tell is the serial number or something.
     
  4. muddyblzr

    muddyblzr 1/2 ton status

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    its an eaton. i always thought there were two. a 3/4 and a 1 ton version. the differences were the ring gear size. 11 1/2 and 12 1/2. the carrier and ring gear size make it stronger than a 14 bolt. the eaton shafts are bigger but are 17 spline so they tend to get more slop in the splines and break. the serial number is the only way to find out which one it is. also it will come in only three ratios. 4.10, 4.56, or 5.13 and some come stock with detroit lockers
     
  5. chevyin

    chevyin 1/2 ton status

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    Cool, interesting info. Thanks guys. :)
     
  6. JIMs70K25

    JIMs70K25 1/2 ton status

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    You have the H072 and H052 varities, only difference size of brakes. Quit being used in 72. The h110 was the larger ring gear animal, did not have a removeable cover like the other two. the 72 and 52 denote weight ratings. I had a H052 in a 71 K20. Lockers are like the 14 bolt only a detroit available, drops in like the 14 bolt. Called a no-spin.
     
  7. sweetk30

    sweetk30 professional hooker Premium Member

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    yep and the front hubs look big to me almost sure its a 60 front.
     
  8. 8_YOUR_H2

    8_YOUR_H2 1/2 ton status

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    That thing is sweet. It has one ton running gears
     
  9. muddybuddy

    muddybuddy 3/4 ton status

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    how does the eaton ground clearance compare to the 14b? looks like it has more even with the bigger ring gear size.
     
  10. sweetk30

    sweetk30 professional hooker Premium Member

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    at least 2" to the better.
     
  11. muddybuddy

    muddybuddy 3/4 ton status

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    man, why couldnt the 14b be like that :doah: :doah: :doah:
     
  12. muddybuddy

    muddybuddy 3/4 ton status

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    is it really stronger in general than a 14b?
     
  13. muddyblzr

    muddyblzr 1/2 ton status

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    i dont think the shafts are cuz of the low spline count. they are 1.71'' shafts but are only 17 spline so the slop in the splines causes breakage. other than that its stronger. everything is bigger, one piece axle so no twisting tubes. removeable 3rd member and diff cover.
     
  14. u2slow

    u2slow 1/2 ton status

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    The ring gear on the H054/072 is approximately 10-1/8" in diameter.

    The H110 is 12-1/4" according to Tractech's No-Spin application listing.

    Assuming the H054/072, I would say comparable... not stronger.
     
  15. JIMs70K25

    JIMs70K25 1/2 ton status

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    I think the shafts are under 1.5", mine were.

    The best part of the eaton style axles is the fact that the housing is all one piece. You can weld where ever you want, no cast parts. The detoit locker for it is no longer available but used ones can be had, I bought 2, was going to put an H072 under my GMC then sold it. The third member weighted right at 150lbs.
     
  16. atho

    atho 1/2 ton status

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    the shafts neck down after the splines, just like the 14 bolt's. i'd say that strength is on par with the 14 bolt, don't trust that ebay auction. after all, the blazer has "dana 60's" with a rear "pumpkin." :rolleyes:
     
  17. jason m

    jason m 1/2 ton status

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    brining this back from the dead, i was looking on pirate and there are alot of guys saying that you can swap the 14 bolt side gears into the eaton and use the 14 bolt shafts, they slide right in with no mods. one guy took a 14 bolt detriot locker and swapped it onto the eaton carrier, so after you do this i would say the eaton is stronger than the 14 bolt, alot of good info over there on these axles, jason.
     
  18. atho

    atho 1/2 ton status

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    i am swapping the 14b detroit into the eaton third. they look a little bit different, but fit in the different carriers.

    you can also get a 1410 yoke for these, however you have to custom order it because the pinion on these axles is fuggin huge (2" diameter, 10 spline).

    everyone says the eaton axles are weak, but i am not sure about that. deuce and a half rockwells are only 16 or 17 spline, and you don't hear about them breaking (well, 'cept for Dan Dibbles).
     
  19. DEMON44

    DEMON44 Low-Tech Redneck

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    I watched a guy up here bust an axle shaft in his rear 2 1/2ton rockwell.

    I would not say they're indestructible. Stong sure, but not untouchable.
     
  20. sweetk30

    sweetk30 professional hooker Premium Member

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    i have a friend that runs the eaton all stock for over 20 years with 38" tires and built motors. he even has a 454 with over 500 hp and still going. i would say if it ever drops a axle or locker then swap it over to 14ff guts.
     

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