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d44 open or closed knuckle
02-25-2005, 03:12 PM
Post: #1
 
I ve searched everywherew and i wanna know if the d44 hd out of a jeep is stronger than a closed knuckle d44 out of a ford..........both are 3/4 ton
I would like to what the strenghts and weaknesses of both are




Josh<BR>1981 Toyota 4x4<BR>http://members.cardomain.com/jactoy4x4 <BR>In the process.....<BR>Ford 390 big block<BR>Dana 60-D44 front<BR>np435 tranny to div. np205<BR><BR>new ride!! datsun is gone<BR>88 BMW 325is.<BR>sick stereo..nice rims and tires..good to go!
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02-25-2005, 03:16 PM
Post: #2
 
The open knuckle is stronger, highly doubt you found a 3/4 ton open knuckle jeep dana 44 though, I have only ever seen closed knuckle ones, all of the open knuckles ones have been half ton

the ford front axle will have 260x joints (same size as a dana 30)
the jeep will have 297x joints

The advantage of the open knuckle is it allows a tighter turning radius and it is easier to maintain. The closed structure of the closed knuckle limits its ability to swivel. It also is a bit harder to maintain since the knuckle must be sealed. Closed knuckle axle shaft joints either run in gear lube or in grease in the knuckle, and the lubricant tends to leak out of the knuckle. The open knuckle axles used a u- joint.




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02-25-2005, 08:46 PM
Post: #3
 
Well, the later jeep trucks did have open knuckle D44HDs. The open knuckles have more parts available. They use more common balljoints. Standard ujoints in the knuckles, and will most likely have 30 spline inner shafts.

The closed knuckle has kingpins (stronger) but might have tracta-joints. The joints are enclosed. Parts are harder to find.

steved




2012 Chevrolet 2500HD Silverado 4wd
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02-25-2005, 11:31 PM
Post: #4
 
Quote:highly doubt you found a 3/4 ton open knuckle jeep dana 44 though, I have only ever seen closed knuckle ones, all of the open knuckles ones have been half ton
It is my Dana 44 he is asking about
It is a D44 HD out of a 1975 J20
Open nuckle disc, flat tops, 4:10 gears, Warn Premium hubs

[Image: attachment-696481.jpg]




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02-25-2005, 11:37 PM
Post: #5
 
doesn't the HD have a thicker axle tube than a Non HD axle, and what about the U-joint? I read that the HD had a 297X? Is this true>?




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<>< Jesus Christ Is my Lord & Savior
IN THE WORKS
78 wagoneer limited, 6.5" Rusty's Front, 63" chevy rear, 36" TSL's ,Lock Rite front, ARB rear

RIP
1995 Ranger pre-Mudder 2.3L 5spd, 4.5\" trail master drop spindles. 4:10 locked on 33"s TSL's
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02-25-2005, 11:41 PM
Post: #6
 
Is that a 6 lug or 8 lug axle?




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02-26-2005, 01:30 AM
Post: #7
 
Nearly all D44s have the commonly known as 297x u joint except early ones had the 260x.

The old 5-297x is supersceeded to 5-760x now.
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02-26-2005, 03:33 PM
Post: #8
 
Quote:Is that a 6 lug or 8 lug axle?
8 Lug




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<>< Jesus Christ Is my Lord & Savior
IN THE WORKS
78 wagoneer limited, 6.5" Rusty's Front, 63" chevy rear, 36" TSL's ,Lock Rite front, ARB rear

RIP
1995 Ranger pre-Mudder 2.3L 5spd, 4.5\" trail master drop spindles. 4:10 locked on 33"s TSL's
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02-26-2005, 08:11 PM
Post: #9
 
Yes, your axle will have 1/2 inch thick tubes, but as Madd Ramm and I have discussed, chances are you would crack the center housing before you bent either a heavy wall or standard walled D44.

I forgot to add, the closed knuckle axles will most likely have a 16 spline axle...not the more common 30-spline. If you were to combine a D44 closed knuckle with more modern parts, you could potentially have a very good axle...no balljoints.

steved




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02-27-2005, 03:41 AM
Post: #10
 
Quote:If you were to combine a D44 closed knuckle with more modern parts, you could potentially have a very good axle...no balljoints
But how much would that run? and how much work to convert it to the Disc?




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<>< Jesus Christ Is my Lord & Savior
IN THE WORKS
78 wagoneer limited, 6.5" Rusty's Front, 63" chevy rear, 36" TSL's ,Lock Rite front, ARB rear

RIP
1995 Ranger pre-Mudder 2.3L 5spd, 4.5\" trail master drop spindles. 4:10 locked on 33"s TSL's
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