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messerschmittfan
01-21-2006, 06:40 PM
I am cleaning up and repairing my 1960 Hawk that came out of Switzerland (manufactured for export in South Bend and assembled in Switzerland by Binelli & Ehrsan A.G. in Zurich). On the rear end there are two metal tags the one on the left side (drivers) has 4645 over 3.54; there is another tag on the right side that has 45 on it and the casting number on the right side of the differential housing is 44.

I know that the 3.54 should be the ratio but what do the other numbers mean, can anyone help? Is this a positive traction rear end?

Thanks Harry

N8N
01-21-2006, 07:57 PM
I have no idea about the 4645, but the 45 by itself probably does mean that it is a limited slip. Pull the fill plug to be sure, if it is a limited slip you will see the unit right up tight against the hole, unless you have real small hands you won't even be able to stick your finger in.

nate

--
55 Commander Starlight
62 Daytona hardtop
http://home.comcast.net/~njnagel

Dick Steinkamp
01-21-2006, 09:05 PM
quote:Originally posted by N8N

I have no idea about the 4645, but the 45 by itself probably does mean that it is a limited slip. Pull the fill plug to be sure, if it is a limited slip you will see the unit right up tight against the hole, unless you have real small hands you won't even be able to stick your finger in.

nate

--
55 Commander Starlight
62 Daytona hardtop
http://home.comcast.net/~njnagel


To add to Nate's post...the 44 on the diff housing means it's a "Dana 44" differential. This was the differential used in most V8 Studebakers from'51-64 (and some to '66).

The numbers over the 3.54 on the tag should be the number of teeth on the ring gear and the number of teeth on the pinion gear. For a 3.54, they should read 46-13 (maybe the tag is dirty or worn?)

-Dick-