1999 GMC Sierra 1500 Pickup Owner's Manual - Page 341
1999 GMC Sierra 1500 Pickup Manual
Page 341 highlights
6. Replacethe bulb retainer. 7. Replacetherearlightassemblyandtightenthescrews. 8. Closethetailgate. Sear Lights, Chassis Cab Models U 1. Usingyourhands,peeltherubbersealawayfromthelens. I PO497 2. Liftthelens off thelightassembly. 3. Slidethesocketout of thelightassembly 6-63
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