buddy of mine got a Painless 21 for his TF truck w/ 350/350, pretty much the same as the EZ .... not at all painless, with a whole mess of unused wire to try to jam into small spaces, or throw away
21 circuits means alternator, AC & aftermarket heater, elec fan, 4x4 controls, 3rd brake lite, power windows, power door locks, etc etc etc [to 21, the 20 has 1 less
]
I strongly recommend getting an OE style repro harness, which will be enclosed in the correct shaped loom for your truck and
really be easy
Bill
