Which axle seal?
 

Did a search and didn't see anything... The Blazer is leaking gear grease out at the right rear wheel... needs a new seal.

It's a 1995 4x4 with 4.3l vin w engine, so it has a 7.62" ring gear AFAIK.

NAPA has 2 listings for an outer axle seal for applications with 7.62" ring gear

one "With Stamping 'C' "
and one "With Stamping 'K' "

Is this a stamping on the ring gear or??? is there a way to tell without taking it apart?

It has to come apart anyway to pull the c clip, so if its on the ring gear I guess I'll just have to look and see if its a c or k...