I don't believe the composite gears are available for any Mopar applications.

I looked into the coated gears and decided to try out a bronze gear and be very careful to limit the distributor shaft vertical play using a slip-on (screw-type) collar on the shaft. Can't tell you how that's working out, yet, though.

The coated gears have warnings against using them w/ high oil pressure, same as the composite gears. I've been cranking 60-65 psi hot and don't want to find out the hard way what their true limit is for handling that sort of load on the gear.