I am in the need of the list's expert advice once again.
I have two vastly different distributors, both supposedly from '79 1500
One, Lucas 45DE4 >0176has a big box on the side where the vacuum
diaphram is, and has a three wire hookup.
The other, Lucas 45DM4 >3780 has no big box before the diaphram and has
a two wire hookup.
Does the number after the arrow give the mfg date?
What is the difference between 2 & 3 wire? external vs internal
Is one better than the other?
All comments appreciated.