Siderod,
It looks like you posted 2 sets of RSC14's. The RSC14 was a de-rated RS18 on RSC13 trucks. The RSC13 was basically MLW's answer to the RSC3. The trucks on the RSC2 that Siderod posted are a variant, and similar to the trucks on the Seaboard RSC-3 that green_elite_cab posted.
The 'C'...