Differential Identification

[Wood and Steel]

Hi everyone,

 

I recently picked up a drivetrain out of a '53 Plymouth, mostly for the OD transmission, but I'm a bit confused by the differential. As far as I can tell, it reads 2.38. From my research, I'm not seeing that as an option on a '53.

 

 

It made me wonder what was on my '51 Plymouth, as I've never bothered to look. The engine is out of a '57; not sure of the rest of the drivetrain. It looks like it says 3.04 to me, which I also can't find as an option.

 

 

Any idea what I might have? I don't know much about gear ratios, so what would be the better option paired with an R10 for relaxed Sunday driving/road-tripping ? 

[FarmerJon]

I think you are looking at the wrong numbers. I have a pic someplace with the right areas to look marked, I will try to post it later tonight, I think lowest numerical gear made was 3.54 or so, all the way up to 4.11+

 

[Wood and Steel]

9 minutes ago, FarmerJon said:

I think you are looking at the wrong numbers. I have a pic someplace with the right areas to look marked, I will try to post it later tonight, I think lowest numerical gear made was 3.54 or so, all the way up to 4.11+

 

That would be appreciated. It definitely seemed wrong to me.

[Young Ed]

There is a flat spot right at the top of the housing. Would be facing the floor of the car when installed. Look for the stamping there

[Veemoney]

I found they are usually marked in one or both of these spots with this style number stamp. First pic is the top and second is looking from the bottom.

 

 

[FarmerJon]

Young and Vee pretty much got it covered, but incase another angle would help....