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? about dana 44

Discussion in 'The Hokey Ass Message Board' started by jd55f100, Nov 3, 2010.

  1. jd55f100
    Joined: Aug 29, 2007
    Posts: 312

    jd55f100
    Member
    from alabama

    i have a 1955 f100 with the factory rear end a dana 44 with 392 gears
    i want to run something like a 3.08 so i will have a low rpm cruising gears

    i have a lot of work and time in my current rear end just to swap it out so what
    i want to know is what kind of truck/car has the same rear end with 3.08 gears that i might be able to find in
    a junk yard that i can swap the gears and carrier out of
     
  2. i don't know if they are exactly the same, but a chevy used a dana 44 in the front of alot of their 1/2 ton 4x4's from the 70's and early 80's. most of those with an automatic were 3.08 gear.
     
  3. Weasel
    Joined: Dec 30, 2007
    Posts: 6,693

    Weasel
    Member

    Just a question - what kind of trans do you have? An AOD might give you a better but not cheaper solution. You retain the performance of the 3.92 gearing through the first three speeds and get the bonus of low cruising rpms in 4th. Just my 0.02C....
     
  4. squirrel
    Joined: Sep 23, 2004
    Posts: 48,664

    squirrel
    Member

    I thought they switched to the 10 bolt around 77? but I could be wrong, it's been too long since I worked on one. That's the same idea I had.

    I just looked in the shed...I have a set. They are 3.07 (43/14)
     

  5. BulldawgMusclecars
    Joined: Jul 15, 2010
    Posts: 508

    BulldawgMusclecars
    Member

    It might be the factory rearend, or a Dana 44, but the factory rear wouldn't be a Dana 44. Dana 44s were used in International Scout IIs (maybe others), some later Chevy trucks as mentioned, and, in IRS form, in 85-up Corvettes and Dodge Vipers. I can't think of anything that came with one before the '70s.
     
  6. squirrel
    Joined: Sep 23, 2004
    Posts: 48,664

    squirrel
    Member

    GMC trucks used them in the 60s. But they used the 40 in the 50s, I have a 40 from a 59 chevy truck with posi. It has a different size pinion bearing, there may be other differences.

    Look at the housing, does it actually say 44 on it, cast in?
     
  7. landseaandair
    Joined: Feb 23, 2009
    Posts: 4,435

    landseaandair
    Member
    from phoenix

    I'm interested in this also. My buddy has what we believe to be a Dana 44 out of a '49 or '50 Merc and it currently has 4.10's ? He'd like to go with a 3 something gear but we're unsure about what the differences in carriers might be, splines, yoke, etc.
     
    Last edited: Nov 3, 2010
  8. squirrel
    Joined: Sep 23, 2004
    Posts: 48,664

    squirrel
    Member

    going to rockauto.com and looking up the differential pinion bearings for the 1976 K10 Spicer front axle, and 1955 Ford F series truck reveals the same part number for the inner bearing....so there's some hope.
     
  9. jd55f100
    Joined: Aug 29, 2007
    Posts: 312

    jd55f100
    Member
    from alabama

    I am running a 350 turbo trans
    and it has 44 cast on the top side close to center of axle near drive shaft
     
  10. squirrel
    Joined: Sep 23, 2004
    Posts: 48,664

    squirrel
    Member

    Might work then. You'd need to do some measuring I think, because Spicer was good about changing things over the years.
     
  11. gimpyshotrods
    Joined: May 20, 2009
    Posts: 18,092

    gimpyshotrods
    ALLIANCE MEMBER

    The carrier break on a Dana 44 is as follows:

    Gears 3.73:1 and numerically lower use one carrier.
    Gears 3.92:1 and numerically higher use the other carrier.

    To go from a 3.92:1 to a 3:08:1 using the same axle, you'd have to change the carrier.
     
  12. squirrel
    Joined: Sep 23, 2004
    Posts: 48,664

    squirrel
    Member

    "USA Standard Gears are not recommended for quiet running vehicles."

    Gotta love it

    there's a guy selling used 3.07 gear sets for the 44 on epay for sixty bucks a pop
     
  13. gimpyshotrods
    Joined: May 20, 2009
    Posts: 18,092

    gimpyshotrods
    ALLIANCE MEMBER

    Pay the extra $$ and get a quiet gear set. They will last longer, and you will be less likely to be in a homicidal rage after a long drive.
     
  14. zman
    Joined: Apr 2, 2001
    Posts: 16,595

    zman
    Member
    from Garner, NC

  15. I've still got the dana 44 out of my '62 Studebaker Lark. I'm pretty sure it was 'factory'. I have never checked the gear ratio though.
     
  16. gimpyshotrods
    Joined: May 20, 2009
    Posts: 18,092

    gimpyshotrods
    ALLIANCE MEMBER

  17. RichFox
    Joined: Dec 3, 2006
    Posts: 10,017

    RichFox
    ALLIANCE MEMBER

    My '77 F100 came with a Dana 44 and 2.77s. Hopeless gear set for anything more than 12 miles from Wendover. I had a nine ince that bolted in and had to give away the Dana with less than 10,000 miles on it.
     
  18. jd55f100
    Joined: Aug 29, 2007
    Posts: 312

    jd55f100
    Member
    from alabama

    Hey thanks guys for all the help
    i found a list of vehicles on hemmings with dana 441980-'82 Corvette
    1968-'85 Avanti II
    1955-'56 Ford Thunderbird
    1966-'75 International Metro van, 1100 and 1200 series pickups
    1968-'80 International Scout
    1972-'75 Jeep Scrambler and 1972-'73 Jeepster
    1967-'75 Jeep CJ-7
    1976-'92 Jeep Comanche and Cherokee
    1972-'79 Wrangler and Wagoneer
    1997 and newer Jeep Wrangler
    2001-'10 Wrangler Rubicon
    1977-'79 Ford ½-ton pickupsv 1959-'68 2WD and 1962-'69 4WD Ford ½-ton pickups
    1963-'67 AC Cobra Independent rear suspension axles are also used in
    1985-'96 Corvette C4 (independent control arm assembly)
    1992 and up Dodge Viper
    1996-'03 Jeep Grand Cherokee
    1980-'85 Excalibur cars Front axle applications include
    1971-'82 Chevy Blazer
    1960-'90 Chevy K-10 and K-20 pickups and Suburbans
    1967-'76 Chevy K-30
    1974-'93 Dodge Ramcharger and Plymouth Trailduster
    1969-'02 Dodge W-100 and 200 w/3,000-lb. axle and W-200 w/3,500-lb. axle
    1970-'77 Bronco
    1977-'90 F-250
    1962-'79 F-100 and 150 (as straight axle)
    1980-'96 F-100 and F-150 (as IFS "twin traction beam" axle)
    1966-'75 International pickup
    1972-'80 International Scout
    1993-'00 Isuzu Amigo and Rodeo
    1974-'83 Wagoneer
    1974-'86 J-10 and J-20 pickups
    1984-'92 Grand Wagoneer
    2001-'10 Wrangler Rubicon
     
  19. I'll second that one Zman.....56 IH with a Dana 44 and tapered axles/hubs....fun stuff.
     
  20. gimpyshotrods
    Joined: May 20, 2009
    Posts: 18,092

    gimpyshotrods
    ALLIANCE MEMBER

    Keep in mind that a bunch of those on that list are "hybrids". The Grand Cherokee ones often have the Aluminum center housing (do not want). The Isuzu ones have a bunch of different parts, and are 6-lug. The IRS ones aren't even 'axles'. A bunch of the ones on that list are 4x4 FRONT axles. Of the 4x4 front axles, a bunch of the Ford stuff is reverse spiral bevel, so the only interchange part with a read D44 is the carrier.
     
  21. I can guaran-fucking-tee that a '55 F-100 had the Dana 44 as the original rear axle...owned too many of them. (Plus, it's listed as the std. axle in the factory literature...) The 44 was used at least as early as '53...possibly earlier, I'm not certain. I believe the previous axle was the Dana 41, but can't swear to that. From '57 on up, the F-100 had a 9", unless limited slip was specified- in those cases the Dana 44 was still used through the early '60s. I have a 3.73 LS Dana out of a '62 sitting in storage.

    However, some older D44s have 19-spline axles and side gears, as opposed to the 30-spline sides/axles. It is possible to swap 30-spline stuff into a 19-spline carrier.

    Zman, you oughtta know that IH trucks are never listed in anything. :D Seriously, some '50s & up 1/2 tons have the D44, and some have an IH-built axle...might be other axles in them too. From what I have seen the '67-up 1/2 tons are all Dana 44 equipped.
     

  22. My '61 Willys has danas and unless I am mistaken they are dana44s. But I could be mistaken. it would be of no help though the absolute highest gear offered in '61 was a 4.88 and it goes from there to 5.14 and 5.56. :eek:
     
  23. 3.07 ratio gearset, Dana part number 706017-1X. The genuine Dana gearset will include pinion seal, pinion bearings, pinion shims, carrier shims, cover gasket. Carrier bearings should be 706032X.
    Now if I could find a catalog, I could look up the bare carrier part number.
    Carrier ratio application split previously posted is correct. Dana carriers are inexpensive. You'll be able to find axle and spider gear shims, because they interchange with later stuff, but Dana doesn't have 19 spline axle gears available anymore. I'm sure somebody here has a good pair of gears stashed if needed, ain't me.
     
  24. gimpyshotrods
    Joined: May 20, 2009
    Posts: 18,092

    gimpyshotrods
    ALLIANCE MEMBER

    The 3.73:1 and down bare carrier (30 spline) part number is 706024X.
     
  25. 4tl8ford
    Joined: Sep 1, 2004
    Posts: 1,087

    4tl8ford
    Member
    from Erie, Pa

    The early Ford 44's (40', 50's) were 19 spline axles - they are not hotrod friendly - Plenty of them still running tho.
     
  26. gimpyshotrods
    Joined: May 20, 2009
    Posts: 18,092

    gimpyshotrods
    ALLIANCE MEMBER

  27. squirrel
    Joined: Sep 23, 2004
    Posts: 48,664

    squirrel
    Member

    well that takes all the fun out of it
     
  28. Bounder
    Joined: Oct 31, 2011
    Posts: 251

    Bounder
    Member

    Gonna keep this
     

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