shifter mechanism ID

Mopar OEM shifters can be identified by the four didget number stamped on the reverse lever (longest of three) arms linkage rods fasten to.

6353 is 68-9 B-body and 68-up A-body
7174 is 70 B-body only
7180 is 70-4 E-body and 71-up B-body.

Closed chamber head
Keith Black quench dome piston
New style roller pilot bearing
Clutch type suregrip pin for 8¾