Performance Forums > Drivetrain
Differential
the old trucker:
--- Quote from: Cranman on October 31, 2006, 09:06:34 am ---If it is just the carrier that you need you can use one from an early 50's model Dodge or Plymouth car. Pickups too I think. Apparently the correct ratio is 4.11 to 1. I just found one that is 3.9 to 1 and I plan to use it. Later models had a finer axle spline pattern that was not compatable with the narrow guage axles. You have to pull the axles back to get the carrier out so you can tell right away if it is the right one. The ratio is usually stamped on the outer edge of the pinion gear. All above info is from Ted our local bombardier pro. For those of you with early wide guages you could use the auto axles or likely the whole assembly. Since you'd be installing it upside down you'd have to weld the vent hole up and tap in a new one on the other side.
--- End quote ---
Cranman if the correct ratio is 4.11, which is in the woody, & the correct ratio is 4.89 which is in the narrow metal, can I switch the whole insides of the case from one to another ?? I guess the axle spline has to be the same & I will have to reuse my own axles.
Cranman:
I never heard of a 4.89 in an early dodge ?? that would be compatable with your axles. My 3.9 spare out of a 52 Desoto has the course spline. If you are talking about the 4.89 Dana in the later model metals, I don't think the axles would work. I think it is a totally different set up. Going from 4.1 to 3.9 for me will be ok and may even be better for gas mileage. Won't make much difference either way I suppose. At my age a little howling doesn't matter much, getting deaf so I may never have to use my spare but if I don't keep it in the shed , sure as hell I'll need it.
the old trucker:
Cranman I have to look at an old 50-51 Fargo pickup when the snow goes here. There may be a diff in it. Can you tell me if the rear end in a 1949 Dodge power wagon would have the setup I'm looking for ?
OT.
marcdds:
hey ot it might be same set up not sure if 411 check on vintage powwer wagons lots of info there.also go dodge city site he is in southern ontaroi lots ofparts may have a diff for u the 4.89 is in 1 ton diff the same as in my bombardier td trucks hope this can be of some help .any pictures of that snow of urs
the old trucker:
Thanks for the advise Marc. I will check it out. I was talking to a machine shop this morning & they say I can get a diff from a GM truck & have it narrowed for a reasonable price ( similur to Swamp Dawgs ) If I went this way I shouldn't have much trouble finding parts if need be. Marc all my pics are on here in the wooden bombardier section. I'm talking about a diff like the one on top in the top pic. It is a Dana 44 & came from a narrow gauge metal. It is 4" too wide. He says it is pretty straight forward. I'm thinking when he cuts the outer end off the axle he could weld back a piece of 3/8- 7/16" plate drilled out to accept my sprockets. Sound about right ????????????
http://i333.photobucket.com/albums/m366/theoldtrucker/PICT1001.jpg
http://i333.photobucket.com/albums/m366/theoldtrucker/PICT0998.jpg
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