The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post

SMC Performance · 01-16-2022, 03:27 PM

You might want to verify they are both lefts. I have 2 that I purchased about 8 years ago from my GM dealer. I ordered 1 LH and 1 RH but they sent 2 boxes both 3951813 LH. The seals have listed in the corner with paint marker. 3951814 LH (not RH) . When you lay them both out there is 1 LH, and 1 RH based on Long side vs short side. So I have 1 LH 3951813, and 1 RH 3951814 both labelled 3951814LH in 3951813LH boxes.

01-16-2022, 03:27 PM	#6
SMC Performance Registered User Join Date: Jun 2015 Location: Ortonville, Michigan Posts: 14	Re: Nos door to cab seal LH You might want to verify they are both lefts. I have 2 that I purchased about 8 years ago from my GM dealer. I ordered 1 LH and 1 RH but they sent 2 boxes both 3951813 LH. The seals have listed in the corner with paint marker. 3951814 LH (not RH) . When you lay them both out there is 1 LH, and 1 RH based on Long side vs short side. So I have 1 LH 3951813, and 1 RH 3951814 both labelled 3951814LH in 3951813LH boxes.