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Old 11-22-2009, 12:56 PM   #1 (permalink)
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dana 44 weakness

I am building a pickup with a 1979 ford hp dana 44 with 37"-39" tires, what is the weak link or what usually breaks first?
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Old 11-22-2009, 01:13 PM   #2 (permalink)
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lockouts, ujoints, and shafts...



Is it locked or open?
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Old 11-24-2009, 04:28 PM   #3 (permalink)
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I am building a pickup with a 1979 ford hp dana 44 with 37"-39" tires, what is the weak link or what usually breaks first?
My SAS'd 03 Ram has the same HP44 up front locked and running 37's. Holds up well. Driving style plays a part in carnage.

Last edited by ce2flaco; 11-24-2009 at 04:29 PM.
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Old 11-27-2009, 08:24 PM   #4 (permalink)
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axle shaft yokes flex and spit c clips out
then ujoint cap slides out til it hits the balljoint
get some chromo shafts that are setup for full circle snap rings
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Old 11-28-2009, 07:52 AM   #5 (permalink)
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axle shaft yokes flex and spit c clips out
then ujoint cap slides out til it hits the balljoint
get some chromo shafts that are setup for full circle snap rings
Good info!
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Old 11-28-2009, 08:18 AM   #6 (permalink)
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Quote:
Originally Posted by piney1 View Post
I am building a pickup with a 1979 ford hp dana 44 with 37"-39" tires, what is the weak link or what usually breaks first?
Everyone pretty much summed it up, stock shafts/ujoints/lockouts are the weak link and driving style will make a big difference in longevity. Second weak link will be the balljoints... there are two schools of thought on this. 1- run Dana/Spicers and 2- run the cheapy Autozone types and replace them every year as if they are a consumable.

However, there can be a big difference between your 37" and your 39". Example- 39" boggers on steel wheels and DIY beadlocks will be a ton heavier than say a 37" MTR on an aluminum wheel.

IMHO, you're pushing it with that axle and 37's on a fullsize if its a rock rig, but doable.
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Old 11-28-2009, 10:06 AM   #7 (permalink)
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I'm pretty much doing the same thing with my truck. What would you guys suggest be a good tire size, its not gonna be used for hard rock stuff just some trails and some rocks here in the Midwest.
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Old 11-28-2009, 11:31 AM   #8 (permalink)
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disk brake covers

should I use the sheetmetal dust covers, what are the advantages and disadvantages?
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Old 11-28-2009, 05:29 PM   #9 (permalink)
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dump the covers as they are like shock boots. I always would rip the ears off the shafts with my 78, 44 with 35's.
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Old 11-28-2009, 05:46 PM   #10 (permalink)
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If you're going to upgrade to chromos and pricey ujoints, might as well go for some RCV axles...'unbreakable' warranty and don't really cost much more...$1k/set. Then get a set of their drive slugs to use as spares if your lockouts break on the trail, or just run the slugs full time. Personally I'd get a couple sets of 30 spline warn lockouts and keep the slugs in the toolbag as a last resort.

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Old 12-01-2009, 09:28 PM   #11 (permalink)
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