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Old 08-29-2005, 09:24 PM   #1
sb400
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Tach dash cluster - Plug and Play?

I just got a working tach cluster for my '79 (yes!). The new cluster was from a 78 and has all electric gauges (not the mechanical oil pressure gauge) like the earlier trucks. Other than the tach harness, is this a plug and play deal, or do I need to change something in the truck wiring harness to get fuel gauge to work right? The printed circuit on the back looks basically identical between the two clusters, which is what scares me. Is the feed harness different?
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'79 SWB 4x4 Scottsdale 350/4 speed
'70 Nova 406/M20 4 speed
'02 Subaru WRX wagon
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Old 08-29-2005, 10:06 PM   #2
bigblock73
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If you haven't already read this, check it out...

http://www.73-87.com/7387garage/inte...achometers.htm

If this doesn't help, then contact "Crossy", he is our resident factory tach expert and will more than likely have your answer.
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Old 08-30-2005, 07:42 AM   #3
mhicks
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Think we should put this in the FAQ's section? A lot of good info.
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