View Full Version : Twin Traction Truck rear ends

12-26-2009, 09:41 AM
I'd like to put a TT rear end in my '59 half ton pickup. Preferably a 3.54 to 3.90 or so ratio. If anybody has one, I have a 3.31 TT Dana 44 from a Lark I'd trade. Even has brand new flanged axles in it.

Matthew Burnette
Your Friendly Stude Trim Bender

12-26-2009, 11:37 AM
Just cut the center out of a 455.1 last week, saving the unit for something later, saved the axles also...Bob

Bob Peterson / C & B Studebakers

Castro Valley, CA

12-26-2009, 12:07 PM
Now that's a ratio!

12-26-2009, 01:23 PM
Hey Bob will that set up work in a car axle? if so why don't you just throw it in the trunk of Peters lark before they ship it to me. I am looking for a 4:55 so I can take that little lark to the drags this summer. Seems like the 4:55 cars were putting up much better times.


63' R1 Wagonaire

63' 8E45 Detroit

53' 2R5 R1 Powershift TT Under Construction

57' Transtar 304 NP540 4:09 TT Under Construction (in Picture)

58' 3E6D Stock

59' 4E2 122 Scotsman Deluxe V8 4spd curb side fender

61' 6E7 122 Factory Auto


12-26-2009, 01:24 PM
I have 2 Champ truck R/A here in Mass. I could take them to York for you if need be. Both are 4.09's. The TT has over 100K on it, but runs well when removed for 3.31 TT I had made up. I have a NOS (almost) here that is open with maybe 500 miles on it....

12-26-2009, 08:45 PM
John I don't think the gears will work as the axles are larger but I keep it for the the TT section I think they are the same in all 44's truck or car but not the gears...Bob

Bob Peterson / C & B Studebakers

Castro Valley, CA

12-26-2009, 08:48 PM
If you want anything from a 3.73 or lower (numerical)gearing, it's highly unlikely you're gonna find one for a 1/2ton truck. The 3.73 was the lowest (numerically) that you could get in a half ton and most of those would've been in trucks with an automatic. BUT! If you can find the gearcase assy from a 44 rear out of a car, it'll swap in the housing of a truck rear end, no problem! The parts catalogs confirm the part numbers for the gearcase parts are the same from car to truck.;)

1957 Transtar 1/2ton
1963 Cruiser
1960 Larkvertible V8
1958 Provincial wagon
1953 Commander coupe
1957 President two door

12-26-2009, 09:11 PM
Biggs, the rear in the truck now is the original 4.27 casing. Years back my granddad swapped the "innards" from a '60 Hawk rear into the truck casing, giving it a 3.54 ratio. I'll leave it like it is if I can't find a Twin Trac.

12-26-2009, 10:51 PM
I took the Twin-Traction gearing from a 1964 Cruiser and put it into a 1963 Champ 1/2 ton. The car axle shafts are a smaller diameter at the hub end but the splined end is the same diameter as a pickup axle shaft.

1949 2R17
R is for Rusty
In the middle of Minnesota

12-26-2009, 11:12 PM
Matt, I have one here in California. I sent a PM to you.