Brake help 73 Satellite

[d fark]

I'm hoping to get to the Nats tomorrow, pulled car out today to get ready and stuck caliper on left front. No parts store has one.. Will this cross over to other models, they might have the correct caliper and not know it. Its' a 318 base Satellite with 11" rotors, single piston caliper.

I took it apart cleaned it up but the square shouldered o-ring is badly stretched and couldn't get it back in. If I could just a new sealing ring for it I can probably use my old caliper. piston and bore cleaned up decent.
Thanks all

 

[YY1]

Córdoba?

 

[73JF1Bird]

Hope it's fixed and your at the Nats.

 

[d fark]

Parts store pulled up several models including Cordoba. Fortunately Napa and O reilly can still get the caliper or the rebuild kit which consists of the oring and and dust boot. They just don't carry them in stock. Not really much to it.
Drove Jeep to Nats

 

[idrivemopar]

For my 73 RR, I used remanufactured ones from cardone, 18-4063 and 18-4064, got them at oreilly's, their web page lists them as Brake Best, 27 bucks.