I make my own up using an original wiring loom as a sample. I can't make one for what those guys are getting for them. There are some differences between the connectors on the factory relay from 55/56 to 57 up but everything else should be the same. The early ones use ring connectors and the later ones use spade connectors.
The ebay guys are probably buying them from old trucks for $25 and selling them for $95.
Fred

Last edited by rfs56trk; 12/24/2013 6:36 PM.

1956 3100 Pickup/Red/350/3sp OD/PS/Disc Brakes
1957 Bel Air Sport Coupe/Red/355/TH350/PS/Disc Brakes
2017 Silverado LT Single Cab SB/Black/5.3/6 Speed Trans
1947 Willys CJ2A w/F-Head engine