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Will flat top knuckles from a 78 f250 work on a waggy 44? If so is there anything I need to watch or look for?
 

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I am not really sure they will work. I know they are cast differently. But if anything. make sure you get the 6 lug knuckle. some of the f250 axles have 5 lug knuckles. Learned that one when trying to help a friend get his HP D44 fixed. We bought a donor HP D44 and of course it just had to be different.

Trent
 

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nope, i run that axle, the f250 axle uses a bigger knuckle, also has a 5 stud spindle where the waggy has a 6 stud.

edit: hell i may be wrong, ive been searching on pirate for a while. i just remember having a 6 bolt flattop knuckle (suposivly from a waggy) and sticking it up to my inner C's and it was way to small, also very small compared to my 5 stud knuckle. also my spindle has the exact same bolt pattern as a ford D60, just needs to be alittle bigger for to fit the 30 spline outters and a hell a lot bigger for 35 splined shafts :D
 

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Well I had to know so I went outside today and measured the inner C's on my waggy D44 and the inner C's on my 78' F250 HP D44. I measured balljoint mount surface to balljoint mount surface. Exactly the same. The only difference was the beefiness of the C's and the thicker axle tube. So I am game on for a six lug F250 HP D44. Now if my tax return would just show up. I hate to wait.

Trent
 

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dstrbdone said:
Well I had to know so I went outside today and measured the inner C's on my waggy D44 and the inner C's on my 78' F250 HP D44. I measured balljoint mount surface to balljoint mount surface. Exactly the same. The only difference was the beefiness of the C's and the thicker axle tube. So I am game on for a six lug F250 HP D44. Now if my tax return would just show up. I hate to wait.

Trent
well thats good to know, i stand corrected :D
 

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I have heard that the earlier ford axles had the beefier outers. Which may explain the D60 like pattern and the larger inner C's. But then again that is just hear say. They may all be the same who knows for sure. As long as it works, its all good.

Trent
 

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im going to measure mine when i get a chance to head out to the shop again. what was the measurment from balljoint mouting surface to BJ mounting surface?
 

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I think it was around 7" from the lower side of the top ear to the lower side of the bottom ear. I will double check tonight. I have to go out and grease my truck. I'll check it while I am out there. I would like to know what you come up with also for future reference. Also what year is your axle?

Trent
 

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OK checked it is closer to 7.25" balljoint mount surface to balljoint mount surface. On both of my axles.
 

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its a was out of a 78 F250, i was at the shop tonight building my fuel cell and totally forgot to take that measurement. Ill check it next time im out there.
 

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My axle is also from a 78 f250. They are probably the same. Maybe you are right in thinking the supposed waggy knuckle you tried was from a different vehicle.
 
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