Differences between D44 and HD44
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Posting Guru
Joined: Jul 2011
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From: Virginia Beach, VA
Differences between D44 and HD44
I was wondering what the difference was between d44 and hd44. I thought one was 8 lug made for f250's and one was for f150's. Can you please explain this in detail for me.
Post Fiend
Joined: Apr 2008
Posts: 8,261
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From: Big Sky Country
The D44HD is rated at 3,550# and has .500" thick tubes, external locking hubs, bigger u-joints and wheel bearings.
the D44 is rated at 3,300# and has .375" thick tubes, internal locking hubs, smaller u-joints and wheel bearings.
they both share the same 8.5" ring gear and 30 spline inners/19 spline outers.
the D44 is rated at 3,300# and has .375" thick tubes, internal locking hubs, smaller u-joints and wheel bearings.
they both share the same 8.5" ring gear and 30 spline inners/19 spline outers.
Post Fiend
Joined: Apr 2008
Posts: 8,261
Likes: 15
From: Big Sky Country
The D44HD's were low pinion only, and only came in F250's (highboys) and crew cabs....high pinion D44's were available throughout both the bump and dent series in F100's and F150's, the F250 didn't get a high pinion D44 until midyear '77 (78/79's).
Logistics Pro
Joined: Aug 2003
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Here's a really good website that will tell you way more than you ever wanted to know about dana 44s:
Mr.N's Dana Articles to Include 44, 60 information.
Mr.N's Dana Articles to Include 44, 60 information.
Lead Driver
Joined: May 2007
Posts: 6,993
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From: Costa Mesa, CA
Nevermind the below - unless you want to know the difference between d44 and d44 HD in TTB axles - which is what I had in mind when I replied originally. Re-reading the above made me realize you guys are talknig solid axles (duh - this is the dentside forum!). I will leave the link below here just in case someone finds this thread in a search & could use the info.
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Original post:
Here's another good one.
GoFastBroncos.com - View topic - TTB vs. THE WORLD (AKA differences between Ford TTB axles)
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Original post:
Here's another good one.
GoFastBroncos.com - View topic - TTB vs. THE WORLD (AKA differences between Ford TTB axles)
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