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**The Rocknrod** · 05-17-2017, 03:26 PM

Vacuum, Tachometer I believe. On larger trucks mostly I would think. Since then however we are using them.

05-17-2017, 03:26 PM	#2
The Rocknrod Moderator Join Date: Aug 2011 Location: China Spring, TX Posts: 7,280	Re: Gauge cluster Vacuum, Tachometer I believe. On larger trucks mostly I would think. Since then however we are using them. __________________ Master Chief, US Navy, Retired 1964 C10 Step-side Short Bed - In Progress 2009 2500HD Duramax LTZ 1948 GMC Panel 1956 Big Window Stepside 1953 5 Window Chevy Stepside 1932 Coupe New Seat Foam for Bench Seats?