Just actually swapped a 03 5.3 into a late 70’s squarebody last week with a close friend. He drove it 2 days and loved it until the sender popped and [censored] out all the oil against the back of the intake/firewall. We pulled it home and put a plug in it and it wont be a issue again. We have the factory mechanical gauge and sender plumbed into a different spot so there was no need for it with that application.
