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what is this rearend

looks like the old eaton rear ends.... i saw one on a 3/4 ton 71 pickup.
 
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.
 
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
 
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.
 
how does the eaton ground clearance compare to the 14b? looks like it has more even with the bigger ring gear size.
 
muddybuddy said:
is it really stronger in general than a 14b?
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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.
 
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.

is it really stronger in general than a 14b?
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Assuming the H054/072, I would say comparable... not stronger.
 
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.
 
JIMs70K25 said:
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.
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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:
 
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.
 
jason m said:
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.
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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).
 
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).
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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.
 
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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