Author Topic: D44 Gear Upgrade  (Read 1525 times)

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D44 Gear Upgrade
« on: November 22, 2011, 03:08:52 PM »
What do you do when you strip a ring gear?   UPGRADE!!!   Gen II D44 JK gears. The pinion is the same size as a D60

And the Ring gear is larger and thicker requiring a new high speed carrier.



Start with an empty housing and plug the axle tubes. Grind reliefs in the bearing pocket at 1 and 7 o clock. The new bearing race inner diameter is now larger and the reliefs are needed to push the race out when shimming.


Bolt the ring gear to the carrier and check clearance in the housing. Grind as needed.


Set pinion depth and preload like any other gear install. Then shim in your backlash.


Check your pattern and adjust shims as needed.


And there it is. A 44 % increase in strength. The clearance of a small housing. Who needs one ton axles?
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Re: D44 Gear Upgrade
« Reply #1 on: November 22, 2011, 04:07:17 PM »
Hey Charlie, great tech article.  We need more like this, maybe inspiring somebody to do this to their rig.  Thanks, for posting.
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Re: D44 Gear Upgrade
« Reply #2 on: November 22, 2011, 09:12:27 PM »
Well done Amigo...Nice write up and pics!
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Re: D44 Gear Upgrade
« Reply #3 on: January 04, 2012, 05:07:01 PM »
I see this in my future! What kind of price range are we talking for something of this caliber?

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Re: D44 Gear Upgrade
« Reply #4 on: January 04, 2012, 06:31:31 PM »
You need body armor, real skid plates, and a few other trinkets before worrying about this. You would also have to go to a different type of locker $$$$$ than what you have now. Parts alone with my spool was around $ 650
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jpwood1969

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Re: D44 Gear Upgrade
« Reply #5 on: January 06, 2012, 02:09:52 PM »
good to know. thanks Charlie

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Re: D44 Gear Upgrade
« Reply #6 on: November 24, 2012, 06:07:48 AM »
Very nice, I have a D44 that needs rebuilt and this would be great for it, 488 gears work for this?  Thanks
Cheers, Steve

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Re: D44 Gear Upgrade
« Reply #7 on: November 24, 2012, 11:38:04 AM »
Low pinion is limited to JK gear ratio's.  Yes 4:88 is available. High pinion uses Dana 50 gear sets.
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Re: D44 Gear Upgrade
« Reply #8 on: May 20, 2013, 07:41:44 PM »
If you need d50 stuffin a high pinion  what shafts do you use?
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Re: D44 Gear Upgrade
« Reply #9 on: May 21, 2013, 09:17:18 AM »
You are using D50 gears The rest is D44 with a special bearing kit and Yoke.
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