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Qs about D-44 spider gears, 4 in front?

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Old 02-09-2018, 10:05 PM
78Broncoinpieces 78Broncoinpieces is offline
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Qs about D-44 spider gears, 4 in front?

78 Bronco, 351M, C6, full time. 3.50 gears, factory stuff, nothing custom, yet...

Plan is to install a 460 some day and I'm concerned about the strength of the front diff. standard open 44 for now. looking at the parts manuals all I found was a 2 spider front diff. are there open diff carriers that have 4 spiders? I found trac-loks that have 4 spiders but don't want a trac-lok up front.

another option would be Detroit Tru track. great for a steering axle and no spiders gears to break.

the truck will never see hard-core off roading, just daily driving and "stupid-stuff". plus whatever I can get into around Ohio & Michigan.


thanks
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Old 02-13-2018, 01:53 AM
78Broncoinpieces 78Broncoinpieces is offline
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Hmmm, I'll take the silence as a no. most likely will opt for a True Trac or Torsen.
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Old Yesterday, 09:14 PM
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Well that same basic axle was installed in F250s with 460s in them so as long as you don't do 3500rpm drop into drive shots it should be good.
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Old Yesterday, 10:14 PM
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I don't think they make a 4 spider open diff for the Dana 44 because the spider gears in the open diff rarely ever fail due to too much power, usually you will break a u-joint, driveshaft, or axle shaft long before a spider gear will fail. If you want to upgrade then the Truetrac is a great unit to run in the front axle.
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