They are LMC Truck's Euro Style for '88-89. Yeah, I prefer that setup too over composite. I just did a story for CCT on my '79 C10 here's a link. I also used LMC's relay kit on my '88. For some reason all four aren't coming on right now or my parking lights, but here's a look at how good they work on my '88.
I Hope this helps,
http://www.customclassictrucks.com/t...c10/index.html
(2) 36-0302 EURO HEADLIGHT-OUTER-150MM
(2) 36-0303 EURO HEADLIGHT-INNER-150MM