Re: 1971 5.3/4L60E first time swap
Nice looking build. For the O2 wires, you'll most likely need to get a voltmeter and check continuity between the sensor plug and the PCM connector to be sure which is which, because you definitely don't want to get them swapped side for side, that makes for a hard to figure out problem, but I've seen people do it more than once.
On a side note... Is the truck a '91 Chevy truck color? A buddy of mine painted his '72 a similar color back in '90 I believe, and I think it was called Brilliant Blue, and was a new color on the trucks that year.
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