Quote:
Originally Posted by hatzie
One thing I failed to mention is the fact that the later clusters have electric oil pressure senders ..... so you'll have to route an oil pressure sender wire.
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Good call on the oil sender wire! And that reminds me ... another thing that will have to be changed to be compatible with a 79 or newer gauge cluster is the temperature sending unit.
I believe the GM #8993106 (1/2" NPT threads) is discontinued but last time I checked the #8993146 (3/8" NPT threads) was still available. I don't know if the aftermarket replacements for these units are close to the original specifications. Or if they have issues similar to the ones that have been discussed in other threads about the replacements for the #1513321 that was used with the 78 & older gauges.