The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - Educate me: What is the pupose of cab roof marker lights?

**FirstOwner69** · 04-10-2013, 01:01 AM

Federal law requires them on vehicles greater than 80" wide along with additional red rear lights. I'm not sure why people order them on SRW pickups. Truck with snowplow greater than 80" or one that frequently carries loads greater than 80"? Maybe just the supposedly big truck "cool factor".

04-10-2013, 01:01 AM	#4
FirstOwner69 Senior Member Join Date: May 2010 Location: Wisconsin & Arizona Posts: 4,854	Re: Educate me: What is the pupose of cab roof marker lights? Federal law requires them on vehicles greater than 80" wide along with additional red rear lights. I'm not sure why people order them on SRW pickups. Truck with snowplow greater than 80" or one that frequently carries loads greater than 80"? Maybe just the supposedly big truck "cool factor".