Kevin,

A bit of searching using our very own Search the Site Tool (found in the left margin) located this 6 Volt Truck Headlight thread that includes what you need for adding "relays" for your headlights.

Just one of many posts on the topic, but I think it provides the most info. grin

Dan

~ Dan
1951 Chevy 3 window 3100
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"My Grandpa Carl's Truck and How it Became Mine"
1966 Chevelle (Wife's Hot Rod) | 2013 Chevy Silverado (Current daily driver)
US Army MSG Retired (1977-1998) | Com Fac Maint Lead Tech Retired (1998-2021)