68 Dart Circuit board query

Jason Maitland said
Hi All, I am replacing my Instrument Cluster circuit boards, and noticed the connections on the new board do not have impregnated "Washer" type mounts as per the original board for ALT and OIL gauges; where the respective wires hook up from behind. I was wondering if this means anything, and of course if they will still function without these metal mounts?
Please refer to my pic for a direct comparison between the old BLUE type circuit board, and new installed GREEN board showing no metal impregnated.

View attachment 1715995013

A closeup would help. Probably just a reinforcement.
Aas already mentioned the Ammeter hookups are with ring terminals and MUST be insulated from ground and all other circuits.

All of the wires connected to the battery are hot. The ammeter is like a section of wire, except its a metal plate with two studs.

The '68 Dodge Chassis manual probably shows the boards if you need reference. Also how to take it in and out.
This is from the assembly manual and shows the routing and support.