At one time I had planned to go with new VDO aftermarket gauges in my center console which required these adapters (OEM 2-3/8 to 2-1/16 aftermarket size).
I decided to restore my OEM gauges instead. Thus, selling these German made metal adapters.
I paid $40 ($13.55/ea.) plus tax and shipping.
How about $35 shipped?
Click to view attachment