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Build of Materials

Starboard M

NAXJA Member
NAXJA Member
Location
WA
Starting to build up my front 44. Unfortunately, I don’t know what it came out of and would like to figure that out.
It’s a bare housing, so I don’t really know what I can do, minus looking up the Build of Materials.

Does anyone have a site that has the BOM for Ford front 44s? I can only find them for Chevy, and early Jeeps fronts, and random rear axles.
Thanks
 
"Bill of Materials" - or BoM.

Do you have the number? I think it's stamped on a tube near the centre section. Should start with a "60" or a "61," and I'd need the whole thing (including the suffix - should be one or two digits.)

I've got a fairly compleat listing of BoM numbers, and I'm hoping to fill that out some more once I finally get a line of communication open with Dana.

Meanwhile, you can mail your BoM to me (use my NAXJA.org addy) and give me a day or so to look it up for you.
 
RCP Phx said:
Awsome, thats what I was looking for. However, I plugged my number in, and it didnt take it.

P1010510.jpg

That number is

603472 9 2 1 4 C5

What part of that do I plug in?
This is on the pass. side of the diff, on the front of the axle tube.
 
What specifically are you looking to learn about your axle?
 
XJ_ranger said:
What specifically are you looking to learn about your axle?
Need to know how wide it is, so I know how much I have to narrow it to get it to waggy width.


I have no shafts, outers or anything of the sort. So the BOM is the only way that I know of to find out what it is.

I know its a ford hp44 with welded c's.
 
all the Ford HP 44's with welded c's and open Ball Joint knuckles are the same width -

being as it has Welded 'c's makes it 1977 or older and an F150 or F100 model.


from here:
http://77cj.littlekeylime.com/web_rs44.html

In 1966 Spicer supplied this revolutionary Reverse Spiral axle, the Dana 44RS, for the new front coil sprung suspension on the Ford F100 4x4. (Picture 1 - 4.) The axle debuted with 3.54 or 4.09 gears, drum brakes, open king pin knuckles and running Spicier 5-260x U-joints. These axles were built in the Fort Wayne Indiana plant, even during the days of Edgerton. Spicer produced this style for Ford until the middle of 1971.
1971 was a year of change for this axle, the new axle now came with ball joints instead of king pins to hold the knuckles on. It still had 2 3/4" axle tubes with ½” thick walls and the 5-260 U-joint, with coil mounting brackets in 4 separate cast pieces welded at the top and bottom. The Panhard bar was still attached with a separate bracket, the axle stayed this way thru 1972.
1973 big change was to the larger 5-297 u-joint. It still came with ball joints, 2 3/4" axle tubes with ½” thick walls and the Panhard bar was attached with a separate bracket. The axle stayed this way thru 1975 on all F100’s & F150’s. The 1973 model year also saw the release of the 3.73 and 3.50 gear set in June.
In 1976 the axles coil mounting cast brackets were slightly changed. The front passenger’s side was made with the Panhard bar attachment cast in to it. Additionally 1976 was the first year Ford offered disk brakes as a standard option, although several late 75's have been rumored to have disks. This axle stayed the same for 1977 for the F100 and F150. The 1976-year also saw the release of the 3.00 gear set in December.
In 1977.5 Ford’s new F250 axle now started to appear. Previously, the F250 ran a standard rotation closed knuckle axle (see reference pictures below.) This axle for the F250 44RS is slightly different than the F100 & F150 offered in 1977. The F250 is a little wider than the F100 & F150, for the wider 8 wheel bolt hub. The F250 also has 3" wide axle tubes with ½” thick tube walls, and the axle has many different small changes from the F100 & F150 to include larger brakes. This axle stayed this way until it changed to the Twin Traction Beam (TTB) IFS system of the 1980 model year.
In 1978 the 44RS had its largest change to date for the F100 & F150, which stayed with the axle until the transformation to IFS in 1980. Spicer changed the coil mounting brackets from separate cast brackets that held on the radius arms to a new design that was a single piece per side, with the tubes pressed into the ends of the casting. The center of the cast pieces does not have a tube that passes through it! (See Picture 14) Instead, a tube is pressed on both ends and welded together. This system came with outer tubes 3/8” thick and center tubes 3/8” or ¼” thick.

in a nut shell:
71-75 - Welded 'c's, panhard bar on its own mount
76-77 - Welded 'c's, panhard bar integrated in with the welded 'c'
78-79 - cast 'c's

According to this chart:
http://77cj.littlekeylime.com/images/Dana44axleshafts_Ford.gif

1973-1979 inner (and outter for that matter) shafts are all the same...

Where did you get the axle? any way to ask if it came with Disc brake outters?
Discs are from 1976 to 1979...


EDIT:
According to the above mentioned chart, with the BOM of 603472, your axle is from a 1974 or 1975 Part Time F-100 or F-150 - Meaning that the f-150 had a NP205 t-case, and manual locking hubs rather than drive flanges.
the shafts that axle had in it measured -
Inner Shafts - 33-29/32" and 18-29/32"

and the outters dont matter 'cuse if you're smart, you'll run Chevy outters anyhow...
 
Last edited:
Dana BoM 603472-9:

Open differential, 3.50:1 gearing. Uses 660003-1 Right-Hand Shaft and 660003-2 Left-Hand Shaft.

660003-1 Axle Shaft is splined 1-5/16"x30 on the inner end, runs 33.906" from the centreline of the yoke to the end of the splines, and uses 27902-3X yoke shaft. 27902-3X Yoke Shaft is splined 1-1/4"x19 and is 9.718" Long. Overall length of the shaft and joint assembly is 43-5/8", using 5-297X Cardan Joint

660003-2 Axle Shaft is likewise splined 1-5/16"x30, runs 18.906" from the centreline of the yoke to the end of the splines, and uses 27902-4X yoke shaft. 27902-4X Yoke Shaft is also splined 1-1/4"x19 and 9.718" long. The overall length of the axle shaft is 28-5/8", and also uses a 5-297X Cardan Joint.

Any other questions? That's everything I've gotten to date - I haven't started talking to Dana yet, so I haven't gotten a full listing of WMS-WMS lengths and pinion offsets yet...
 
According to the Warn chart there are two different axle lengths for both inner and outer shafts for bronco and F-100 axles.

1972-1977 BRONCO (Length 18.31 in.; 30 Spline;Driver Side; ) 38809
1972-1977 BRONCO (Length 27.94 in.; 30 Spline;Passenger Side; ) 38810

1968-1979 F-100 PICKUP (Length 18.91 in.; 30 Spline;Driver Side; ) 39143
1968-1979 F-100 PICKUP (Length 33.91 in.; 30 Spline;Passenger Side; ) 39144

So the bronco driver side is .6'' shorter and the passenger side for the bronco is 6'' shorter.

Thanks for the info though.

Im going to be doing the regular cheby/ford combo. Small bearing chevy, ford rotors, etc.
 
FWIW - the Warn shafts lengths have been known to be wrong in the past... and the Early Bronco has a much narrower 44, the later full size bronco (78-84?89?) has the same axle widths for the years that it had solid axles...
 
XJ_ranger said:
all the Ford HP 44's with welded c's and open Ball Joint knuckles are the same width -

being as it has Welded 'c's makes it 1977 or older and an F150 or F100 model.

in a nut shell:
71-75 - Welded 'c's, panhard bar on its own mount
76-77 - Welded 'c's, panhard bar integrated in with the welded 'c'
78-79 - cast 'c's

1973-1979 inner (and outter for that matter) shafts are all the same...

and the outters dont matter 'cuse if you're smart, you'll run Chevy outters anyhow...

I'm confused, aren't all inner 'C' s welded on ?
And it's the Radius Arm Wedges that are either cast or welded depending on the year. ??

XJ_ranger said:
all the Ford HP 44's with welded c's and open Ball Joint knuckles are the same width -

My 1978 Ford F250 HP Dana 44 has weded inner C's and open Ball Joints, and is not the same width as the F150/Bronco D44.

And I thought the only reason to run Chevy outers is if you want to run a 15 inch wheel and clear the calipers.
Otherwise if you run a 16 or 17 inch wheel, it's a lot cheaper to run the stock ford outers that come with the axle for free.
I run the stock Ford flat top knuckles, (with high steer) spindles, rotors, and calipers that came on the axle.
Works for me, the Ford calipers don't require a larger master cylinder, and I didn't have to buy a bunch of Chevy parts. <shrug>

d44-2.jpg
 
Last edited:
Sierra Drifter said:
I'm confused, aren't all inner 'C' s welded on ?
And it's the Radius Arm Wedges that are either cast or welded depending on the year. ??



Yeah. Sorta. I guess he was referring to the wedges as 'c's?


I think all the f-150/bronco axles are the same, and the F-250 axles are different. Because the f-250 axles run leaf springs.
 
Sierra Drifter said:
This thread might be of interest to you.
http://www.jeepforum.com/forum/showthread.php?t=397243
(you have to register to see the 80 or so pictures)
Ive already seen it. Thank you. I will be using it as some help.

I think Opie was refering to the wedges when he said inner Cs. Those wedges are either welded or cast into the housing depending on what year it is.

I am going to be doing a mix and match of parts that opie was talking about because I want to run high steer, and still keep the 5x5.5 bolt pattern. I would stick with Chevy, but they use the 6x5.5? I beleive, so that wont work.
 
That being said, can anyone verrify the axle shaft lengths for waggys (80-84)?

Warn says they are:

1980-1984 WAGONEER (Length 15.8 in.; 30 Spline;Passenger Side; ) 39459
1980-1984 WAGONEER (Length 32.12 in.; 30 Spline;Driver Side; ) 39461
 
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