Car won't crank, Guage lights flash, and how do I pull my starter?

Before you pull the starter, mopars are notorious for lousy elec connections. Undo battery connections and check all your connections at the bulkhead that's located on the firewall.
I cant give a step by step on how to remove your starter sorry. Our 67 barracuda was done by laying under the drivers side of car. There should be no need to come from front rad area.
But like I said check battery and connections 1st. Load test battery.
Also go to mymopar.com and download free service manual as well as elec schematics and service manuals.
Good luck!