'51 Chrysler NY'er drums on a '48 DeSoto?

[Art Bailey]

Hey All,

 

Does anyone know if 12" drums and backing plates from a '51 Chrysler NY'er will fit on a '48 DeSoto Custom? What else besides the backing plates (I'm assuming) do I have to change?

 

Related question, is there a noticeable gain going from an 11" brake drum to a 12"?

 

Thanks,
Art

[Sniper]

I know there is at least one member who advocates this swap, he'd probably know best.  But I forget who it is, lol.

[Art Bailey]

14 minutes ago, Sniper said:

I know there is at least one member who advocates this swap, he'd probably know best.  But I forget who it is, lol.

Loren had a thread going for putting '50 Windsors on her Plymouth, but no news since August. The size difference between 10 and 12 is pretty obvious, but I wonder if there's that much of a difference between 11 and 12? 

[James_Douglas]

If you want the 12 inch brakes, just do get a 1946 yo 1948 Desoto Suburban/Limo or big Chrysler 8 rear-end and swap the while thing.

 

 

James

[Dodgeb4ya]

The 51 NY'er drums front and rear use the larger bolt pattern wheels,hubs/bearings on the fronts, rear drums use a larger axle shaft.

Any Chrysler "8" brake swap to the smaller six cars would be difficult.

The front spindle support also uses the larger threaded pins and bushings. So a steering knuckle support swap won't work either.

So no not an easy swap at all.

Edited October 30, 2021 by Dodgeb4ya

[Art Bailey]

Thanks, guys. Sounds like I have to convince a friend that they want a '48 DeSoto parts car on their property as yard art if I want 12" brakes.

[desoto1939]

I have the 39 Desoto with the factory Lockheed 11 inch brakes.

 

desoto1939@aol.com

 

[James_Douglas]

On 10/30/2021 at 8:07 AM, Dodgeb4ya said:

The 51 NY'er drums front and rear use the larger bolt pattern wheels,hubs/bearings on the fronts, rear drums use a larger axle shaft.

Any Chrysler "8" brake swap to the smaller six cars would be difficult.

The front spindle support also uses the larger threaded pins and bushings. So a steering knuckle support swap won't work either.

So no not an easy swap at all.

On the fronts could one not drill out the rivets and swap the drums? I would have to look and see if the rivet holes are in a different pattern...the bolt pattern would be an issue but one MAY be able to weld the old holes up and drill new ones for the smaller pattern...

 

A backing plate can be welded and modified easy enough to fit if it clears the uprights...

 

I would just change the front to discs and if one needed the 12 inch on the rear just swap and entire big 8 rearend.

 

James