Chromo D44 vs Stock D60? - Pirate4x4.Com : 4x4 and Off-Road Forum
 
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Old 02-04-2012, 09:22 AM   #1 (permalink)
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Chromo D44 vs Stock D60?

I have a 78 F250 SC. The front is a Dana 44 w/open carrier converted to 3-link coil spring and cross over steering. Current tires are 35" duratraks. I may go with 37" later on.


The rear is D60 w/detroit locker.
I am planning on adding a selectable locker to the front in the near future.

Here's my dilema..
Question: What really is the strength difference between chromolly D44 axle shafts and a stock dana 60?

The answer to the above question will help me decide if the D60 swap is worth the effort or not.
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Old 02-04-2012, 09:38 AM   #2 (permalink)
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Chromo 44's are strong!!
But the u-joint is still tiny and weak. Also wheel bearings, knuckles ect ect are wayyyy smaller (weaker) on the 44.
I wheeled a 44 on 37's for a while. I got tired of breaking, and wheeling like a wuss cause i was worried about breakage.
Todd S.


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Old 02-04-2012, 11:56 AM   #3 (permalink)
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As pointed out: axle shaft strength is just one of many factors in the strength equation. The tube diameter/thickness, u-joint size, ring/pinion size, knuckle strength, and many other things means that axle shaft strength alone is not a great comparison. Plus if you get a kingpin d60f then you eliminate the weaker ball joint design of the D44, as well. Just one example: if the tubing advantage of the d60f prevents the pinion from walking away from the ring gear then shaft strength is not much of a factor in that scenario.

Last edited by Jeep CJ7; 02-04-2012 at 11:58 AM.
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Old 02-04-2012, 12:19 PM   #4 (permalink)
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A few threads to ponder


Dana 44 vs Dana 30 discussion about housing deflection
/forum/jeep-non-hardcore/931621-dana-30-vs-44-new-angle.html

Will a D44 handle a Krawler:
/forum/jeep-non-hardcore/503220-will-d44-hold-up-37-bfg-krawler.html

Dana 60 KP outers on a Dana 44 with larger R&P and D60 shafts
/forum/jeep-hardcore-tech/1026121-building-608-9-front-end.html

Stuffing dana 50 gers into your 78 ford hp housing is an option too.
/forum/axles-tires-wheels/948996-jana-54-how-install-50-gears-your-hp44.html

depends on if you want to do it all at once, in incriments and what tire size you are running now vs later. a 60 with 33's or 35s does a great job of catching every rock that comes along.

A 44 can handle 37's, how much torque and wight you are pushing around are all factors. as is tube diameter and thickness, knuckle and C strenght etc. your front end should have 1/2" wall 3" tubes, a Dana 60 will be 3-1/8" tubes with 1/2" wall. then some other Front dana 60s are 3-1/4 and 3-1/2" so pick accordingly. My old 44 had warn shafts and CTM's i never had an issue with shafts, pinion deflection was my biggest battle
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Last edited by ddestruel; 02-04-2012 at 12:22 PM.
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Old 02-04-2012, 06:09 PM   #5 (permalink)
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dana 44+locker+fullsize+tires bigger than 33's= big boom

i blew up my 44 on 35's with a detroit in the front. that trip sucked ass as i was prepping for it for a couple months. vowed never again.

you could spend big bux on ctm's or even RCV shafts, hd knuckle assy's, and still end up wanting a 60. i went through this decision, settled on a 60. the upgrades i did on it was and ARB, 35 spline outters, and Longfield spindle bushings. works great now.
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