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
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.
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....
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)
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.
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?
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.
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.
I am running a 350 turbo trans and it has 44 cast on the top side close to center of axle near drive shaft
Might work then. You'd need to do some measuring I think, because Spicer was good about changing things over the years.
Here is the listing of what the Dana Spicer rear was in: http://www.ringpinion.com/DiffDetai...ana+Spicer&DiffID=15&DiffName=Dana+Spicer+D44 The 48-79 F100 rear is on that list. Gear selection here, you may want to call to check compatibility on your differential. http://www.ringpinion.com/PartsList...D=10&MakeID=2&ModelID=252&Side=Rear&DiffID=15
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.
"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
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.
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.
X2. And the guts from your 3.92:1 carrier will fit into a bare carrier that will take the 3.08:1 gear: http://www.ringpinion.com/ProductDetails.aspx?ProdID=8339
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.
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
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.
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. 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.
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.
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.
The early Ford 44's (40', 50's) were 19 spline axles - they are not hotrod friendly - Plenty of them still running tho.
For the record, Dana parts are completely online: http://www2.dana.com/expertforms/demenu.aspx?prod=AXL
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