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ray_mcavoy · 03-15-2020, 09:49 PM

Well, you could use one of those earlier year clusters in your '79 but it wouldn't be a direct plug-in swap like a '78+ cluster would be.

The tach with the fuel gauge at the bottom (originally used in medium duty trucks) is a good option for having both a tach and a clock.

You might want to double check the location of your brake warning light though. Those were usually located at the bottom of the large fuel gauge, not the speedometer. Although it probably would be possible to swap the colored plastic filter to re-locate it there. And follow the traces on the printed circuit back from that bulb location to the cluster plug to see where you would have to re-locate the wire that activates the light.

03-15-2020, 09:49 PM	#6
ray_mcavoy Registered User Join Date: Nov 2009 Location: Sherman, ME Posts: 2,354	Re: Back of tachometer OE Well, you could use one of those earlier year clusters in your '79 but it wouldn't be a direct plug-in swap like a '78+ cluster would be. The tach with the fuel gauge at the bottom (originally used in medium duty trucks) is a good option for having both a tach and a clock. You might want to double check the location of your brake warning light though. Those were usually located at the bottom of the large fuel gauge, not the speedometer. Although it probably would be possible to swap the colored plastic filter to re-locate it there. And follow the traces on the printed circuit back from that bulb location to the cluster plug to see where you would have to re-locate the wire that activates the light.