GMC vs Chevy grill

[PlayingWithTBI]

I can't help with the early GMC corners but, here's what an 88 Chevy looks like, just for comparison.

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[Dale Stevens]

I just did that. Ebay seller Carlights . Be careful, you'll need left/right, upper and lower. One is a reflecter and the other is marker that carries the bulb. Dale

 

[1madmouse]

I know when I ordered the side marker lights for my sister's 95 Yukon and my 93 Silverado I thought they were the same but The Yukon had different numbers so I ordered by truck and year. The chevy blinkers are grey , the Yukon black, the side markers are so close , just a 1/4 " off. Enough so they won't interchange. I noticed the GMC grill just slips in the bottom, screws in the top, Chevy has screws top, bottom and middle, lot more stable and less likely to crack , but that is just my opinion. I got the markers from Rockauto for about $3-6 bucks apiece and you can order in sets. Headlights complete pair was about $49, blinkers $19 a pair. All of it was TYC where I think everyone gets their stuff.