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Old 10-08-2017, 10:47 PM   #151
Captainfab
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Re: Eaton HO72/HO52 vs. 14 Bolt FF

The H(oh)52/72 was used from '55-'72 in 3/4 and 1 tons.

The highest gear available in the HO52/72 is 4.10's. In my experience 4.57 is the most common.

It is my understanding that the HO72 has the adjuster bolt as seen as in the pic.
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Old 10-25-2017, 07:55 PM   #152
1990JEEPXJ
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Re: Eaton HO72/HO52 vs. 14 Bolt FF

First post here after lurking a while here and on Pirate regarding my HO72.

I have a question that I have not seen addressed anywhere yet. My axle is from a 56 3800 truck. Has 5.14 gears and slide on drums that are 14” diameter. Yes 14”.

Only issues I have with them is that they are not self adjusting and there are no provisions for a parking brake. I’m sure they will stop awesome but no parking brake and not self adjusting sounds like a pain. Sounds like I may need hubs/drums from a newer model?

I would ideally like to go to discs for simplicity but that would require a newer housing

And this will not be in a big old truck. It’ll be swapped into my Jeep Cherokee
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Old 10-25-2017, 11:25 PM   #153
Captainfab
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Re: Eaton HO72/HO52 vs. 14 Bolt FF

If you are wanting to use that HO72 only because of the 5.14 gears, I would strongly suggest considering regearing a 14 bolt or a D60.
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Old 10-25-2017, 11:32 PM   #154
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Re: Eaton HO72/HO52 vs. 14 Bolt FF

That's good advice to regear a 14 bolt. I have recently changed my HO for a '85 14 bolt FF and parts are much easier to find should I want to edit something. The pinion bearing is larger on the 14 bolt FF after 85 or 86 I believe. The rest is the same.
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Old 10-26-2017, 12:58 AM   #155
1990JEEPXJ
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Re: Eaton HO72/HO52 vs. 14 Bolt FF

My axle is also locked and I got it for less than $250 and have an extra 4.10 HO52 third and spare shafts. So if I sell off my extra stuff I’m out maybe $100 at this point.

If I can gear and lock a 14 bolt or Dana 60 for that much I’d be all over it.

I was curious if anyone had seen brakes like are on my axle and what they did with them.
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Old 10-26-2017, 11:50 AM   #156
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Re: Eaton HO72/HO52 vs. 14 Bolt FF

Im interested in your extra 4.10 third.

FYI you can use regular 14bolt disk brake brackets on an eaton. I would use a driveshaft ebrake or the eldorado calipers for flat land parking brake.
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Old 10-26-2017, 12:04 PM   #157
1990JEEPXJ
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Re: Eaton HO72/HO52 vs. 14 Bolt FF

Quote:
Originally Posted by RedRoad View Post
Im interested in your extra 4.10 third.

FYI you can use regular 14bolt disk brake brackets on an eaton. I would use a driveshaft ebrake or the eldorado calipers for flat land parking brake.
Canít use 14 bolt brackets on an eaton with slip on drums. The offset of the hub to the backing plate would be incorrect from what I understand.
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Old 10-26-2017, 02:13 PM   #158
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Re: Eaton HO72/HO52 vs. 14 Bolt FF

Quote:
Originally Posted by 1990JEEPXJ View Post
Canít use 14 bolt brackets on an eaton with slip on drums. The offset of the hub to the backing plate would be incorrect from what I understand.
Would the Cab/Chassis (dually) brackets work?
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