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Old August 20th, 2012, 08:25 PM   #1
deathbypsi
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Default d44 experts....

Building a 78 f150 hp d44 for my ranger project but I have never payed much attention to d44 tech. Im planning to run the stock 3.50 gears {with a doubler} so I can street drive the truck as much as possible. My question is in regards to diffs for d44's.

When im out shopping for axle parts are all d44 diffs interchangable within the ratio breaks ? like the front to rear,ford,gm,jeep?

Not sure if I want to put a lunchbox in the stock open or maybe go with LSD.
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Old August 21st, 2012, 11:38 AM   #2
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Originally Posted by deathbypsi View Post
When im out shopping for axle parts are all d44 diffs interchangable within the ratio breaks ? like the front to rear,ford,gm,jeep?
Yes.

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Dana 44 - up to 3.73 and 3.92 and higher
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Old August 21st, 2012, 11:51 AM   #3
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Pay attention to low pinion vs high.
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Old August 21st, 2012, 04:10 PM   #4
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So a low pinion rear LSD wont work in my high front?
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Old August 21st, 2012, 08:44 PM   #5
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I was referring to gears specifically.
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Old August 21st, 2012, 09:28 PM   #6
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Ok yes I knew that the low/high were different cuts. I just wanna start lookin for a diff and dont wanna buy something that wont work. I really think a LSD would work great in this truck up front.
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Old August 22nd, 2012, 02:26 PM   #7
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I would recommend the True Trac if you talking about a front D44. True Tracs are biased differently for front and rear applications, so the front D44 TT is a little less aggressive than the rear version, making it pretty much invisible on-road.

Some other info for you - GM, Jeep, Dodge, and some Ford front D44s are standard rotation (low pinion). Most, but not all, front Ford D44s are reverse rotation (high pinion).
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Old August 24th, 2012, 12:36 PM   #8
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I found Mr. N's site useful when I did my 44.
http://77cj.littlekeylime.com/web_rs44.html
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Old August 24th, 2012, 01:56 PM   #9
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Thanx John,lotta good info there.
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