Is this dot/sae approved?
Yes. It's approved DOT/SAE.
Is this complete set left and right
Hi, yes. The pakage included: 1 Pair (Left & Right Side) headlight+1 Pair (Left & Right Side) taillights.
Are these lights compatible with a 2003 g Mc yukon slt
Are these led lights
Hi,the headlight is halogen bulbs.
Low Beam Bulb Type: 9006/HB4 (bulb not included)
High Beam Bulb Type: 9005/HB3 (bulb not included)
Will these fit a 1999gmc Yukon
Hi, it's not fit.