[Lee]

Originally Posted by Mister Pontiac

Thanks for this info. I checked with them too and they show they have the correct temp sensor for my 74 Full Size. I ordered one up to see if they're right.

Good luck. I ordered one a few years ago, and it was not accurate. I tested it against one I had bought (for MUCH less $) from AutoZone.

I installed each in my '73 T/A clone. Used a high quality IR temp gun to verify temps (marked a spot on my intake crossover, so I was checking the same spot each time), and mapped the ohms of each sensor as the temps rose to 180 (my t-stat setting at the time). Both senders were the same, and NEITHER were accurate.

I was able to buy a selection of resistors off of Amazon for cheap. Playing around, I was able to make a resistor pack to install between the sender and the gauge, which made "180" on the gauge actually 180.

I posted about this when it happened, probably show up in a search.