Dana 44 newbie questions. Gears and carrier - JeepForum.com

 
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post #1 of 9 Old 01-26-2016, 02:44 PM Thread Starter
spazzzjeep
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Dana 44 newbie questions. Gears and carrier

Swapping a D44 from a 77 scout II into my 83 CJ7 and had some questions. It's a 30 spline rear with 3.7 ratio. And I'm changing to a 4.56 ratio.

- Can I get any Dana 44 ring pinion set? It's a low pinion so I know I need that. But if I find a good used gear set from a dana44 out of a bronco for example. Are they the same size? It sounds like JK d44 is different? Are there others?

- what's a good brand? Is buying a used set a good idea?

- I want a ARB locker. Can get the normal Dana 44 ARB locker 30 spline. 3.92 & up?

Cheers!

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post #2 of 9 Old 01-26-2016, 05:49 PM
Fourtrail
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anything from a low pinion except for the mentioned jk and the dana 44a in the rear of the grand cherokee. the bronco would be a high pinion front, so it would not work.

used is suggest against as you can not match the previous contact pattern and you will shorten the life and may have excessive noise. factory dana are good and I have had good luck with yukon gears

yes, the 3.92 and up arb is fine, there is no difference in low/high pinion for the carrier.

80 CJ-5, 74 CJ-6, 56 CJ-5
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post #3 of 9 Old 01-26-2016, 09:17 PM Thread Starter
spazzzjeep
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Is a high pinion the same as a reverse gearing? Just another name for it?
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post #4 of 9 Old 01-26-2016, 09:18 PM Thread Starter
spazzzjeep
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Also what's the deal with thick gears? Sounds stronger. Or is that so you can use it in a skinny carrier?
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post #5 of 9 Old 01-27-2016, 07:16 AM
jeepdaddy2000
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Quote:
Also what's the deal with thick gears? Sounds stronger. Or is that so you can use it in a skinny carrier?
This.
Used gears are fine, but they are harder to set up and you run the risk of getting a mis-matched set. If you have a reputable shop offering to install a set and you are comfortable with their work, you're fine. If you are setting them up yourself, or getting them from an on line source, you may be better served with a new set.
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post #6 of 9 Old 01-27-2016, 08:15 AM
Fourtrail
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Originally Posted by spazzzjeep View Post
Also what's the deal with thick gears? Sounds stronger. Or is that so you can use it in a skinny carrier?
Not exactly a 'skinny' carrier. To keep weight/ring gear thickness down, at the gear break, the mounting surface for the ring gear is moved closer to the center of the carrier for the smaller pinion head. The thick gears are not stronger, there is the the same amount of teeth contact which is your main strength after material type.

Yes high pinion is the same as 'reverse' gearing. Once the pinion is moved above the center line of the diff, the helical cut of the gears are reversed.


80 CJ-5, 74 CJ-6, 56 CJ-5
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post #7 of 9 Old 01-28-2016, 12:50 AM Thread Starter
spazzzjeep
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Great thanks for all the info. Are gears and carrier for a front D44 going to work in my rear?
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post #8 of 9 Old 01-28-2016, 08:53 AM
Fourtrail
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As long as they are standard rotation, then yes they will.

80 CJ-5, 74 CJ-6, 56 CJ-5
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post #9 of 9 Old 01-28-2016, 11:45 PM
CSP
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Standard CUT not rotation. The pinion and ring gear turn the same direction in reverse cut gears as standard cut gears.


I'd like to know who in the world came up with that stupid reverse rotation nomenclature....
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