Tips On Installing Upper Tailgate Trim - Page 2 - The 1947 - Present Chevrolet & GMC Truck Message Board Network

cebra · 09-26-2019, 08:13 AM

Excellent, thanks for the detailed write-up...will give it a go.

**IT Cowboy** · 07-19-2025, 01:26 AM

Old post but I am hoping someone sees it and replies. Do the side pieces left and right overlap the center piece or but flush up to the end. If they but up it looks like my trim wold need cut on the ends.

**PbFut** · 07-19-2025, 10:50 AM

They overlap. The fit of the trim i purchased, not Mar-K, fit realy bad. I beleive it was the fault of the center piece. I had to flair the soft side pieces slightly for them to fit over center part. My eye would go to it after completion but has since quieted down. Until this post i had forgot about it. The appearance is a 8 or 9 out of 10 from 3 feet away. Less so if you move close and study the contact point in the perspective of the photo.

**IT Cowboy** · 07-19-2025, 11:15 AM

I bought the three piece kit from LMC and it fits ok over the center but noticeable if you get close and eye it. I thought the notches on the end pieces were cut out to fit over the center as it didnt make sense any other way.

I jut put mine on this morning so I filled the end pieces in with 5 pieces of filler plastic on the inside and then used a semi-flexible adhesive glue to put them on with and then taped them in place until they set. I hope it holds up to the jarring and vibrations but I couldn't get myself to drill the holes...yet. I suppose 3m tape might have worked too but I only had a thicker roll of it and it would leave gaps.

Oh, the way the lip on the tailgate where the trim sits leaves the trim not 100 percent lines up with the trim on the lights but it is acceptable to me and again you kind of need to eyeball it. I hate doing projects like this myself becuse I always know where the flaws are and my eye will go righ to them. Anyone off the street probably wouldn't know different.

Extended Power · 07-20-2025, 12:14 AM

I also have the top three piece trim to install on my factory GMC tailgate, as well as the bottom piece.
I have decided to not drill the holes for the trim...but the center piece still has the two holes that will require holes.

Is there any pictures with measurements of where those two holes need to be placed?

Thank you!

**1970cstblazer** · 07-20-2025, 07:42 AM

I used all NOS GM tailgate trim and OEM clips and zero issues with the installation on my Blazer. No weird gaps and flush fitment with the pot metal chrome center piece.

howzzzit · 10-24-2025, 03:08 PM

Quote:

Originally Posted by 1970cstblazer

I used all NOS GM tailgate trim and OEM clips and zero issues with the installation on my Blazer. No weird gaps and flush fitment with the pot metal chrome center piece.

Where did you purchase the oem clips?

09-26-2019, 08:13 AM	#26
cebra Registered User Join Date: Jan 2018 Location: Durham, North Carolina Posts: 782	Re: Tips On Installing Upper Tailgate Trim Excellent, thanks for the detailed write-up...will give it a go. __________________ My Daily Driver Build: http://67-72chevytrucks.com/vboard/s...d.php?t=755668

07-19-2025, 01:26 AM	#27
IT Cowboy Senior Member Join Date: Jan 2025 Location: Arizona in a van down by the river Posts: 620	Re: Tips On Installing Upper Tailgate Trim Old post but I am hoping someone sees it and replies. Do the side pieces left and right overlap the center piece or but flush up to the end. If they but up it looks like my trim wold need cut on the ends. __________________ 1972 C10 Custom Deluxe Highlander 402 Freedom isn't safe, it requires you to take responsibility for your own life, your own safety, and your own success. It carries with it the possibility of failure and the understanding that you're working without out a safety net. If you give the state the responsibility for any of these you also give up the freedom that accompanies the responsibility.

07-19-2025, 10:50 AM	#28
PbFut Senior Member Join Date: Feb 2022 Location: Ca Posts: 1,026	Re: Tips On Installing Upper Tailgate Trim They overlap. The fit of the trim i purchased, not Mar-K, fit realy bad. I beleive it was the fault of the center piece. I had to flair the soft side pieces slightly for them to fit over center part. My eye would go to it after completion but has since quieted down. Until this post i had forgot about it. The appearance is a 8 or 9 out of 10 from 3 feet away. Less so if you move close and study the contact point in the perspective of the photo. Attached Images Last edited by PbFut; 07-19-2025 at 10:58 AM. Reason: Added second photo

07-19-2025, 11:15 AM	#29
IT Cowboy Senior Member Join Date: Jan 2025 Location: Arizona in a van down by the river Posts: 620	Re: Tips On Installing Upper Tailgate Trim I bought the three piece kit from LMC and it fits ok over the center but noticeable if you get close and eye it. I thought the notches on the end pieces were cut out to fit over the center as it didnt make sense any other way. I jut put mine on this morning so I filled the end pieces in with 5 pieces of filler plastic on the inside and then used a semi-flexible adhesive glue to put them on with and then taped them in place until they set. I hope it holds up to the jarring and vibrations but I couldn't get myself to drill the holes...yet. I suppose 3m tape might have worked too but I only had a thicker roll of it and it would leave gaps. Oh, the way the lip on the tailgate where the trim sits leaves the trim not 100 percent lines up with the trim on the lights but it is acceptable to me and again you kind of need to eyeball it. I hate doing projects like this myself becuse I always know where the flaws are and my eye will go righ to them. Anyone off the street probably wouldn't know different. __________________ 1972 C10 Custom Deluxe Highlander 402 Freedom isn't safe, it requires you to take responsibility for your own life, your own safety, and your own success. It carries with it the possibility of failure and the understanding that you're working without out a safety net. If you give the state the responsibility for any of these you also give up the freedom that accompanies the responsibility.

07-20-2025, 12:14 AM	#30
Extended Power Registered User Join Date: Dec 2022 Location: Redcliff, Alberta Posts: 274	Re: Tips On Installing Upper Tailgate Trim I also have the top three piece trim to install on my factory GMC tailgate, as well as the bottom piece. I have decided to not drill the holes for the trim...but the center piece still has the two holes that will require holes. Is there any pictures with measurements of where those two holes need to be placed? Thank you! __________________ "If it ain't broken, fix it 'till it is!"

07-20-2025, 07:42 AM	#31
1970cstblazer All stock and staying that way Join Date: Jul 2003 Location: Elkland, PA Posts: 2,501	Re: Tips On Installing Upper Tailgate Trim I used all NOS GM tailgate trim and OEM clips and zero issues with the installation on my Blazer. No weird gaps and flush fitment with the pot metal chrome center piece. __________________ 1970 K/5 Blazer CST 4WD, TOTM winner December 2024! Medium Bronze poly, 93k ACT. miles, 350, 4 speed, rear positraction, 16.5" x 8.25" HD Kelsey Hayes wheel option, tilt, tach, vacuum, AM/FM, manual throttle...Dad ordered and purchased new 4/70. Frame off restored 1970 K20, To be a clone of my Grandfather's K20, Dark Blue poly, 350, 4 speed, 16.5" X 8.25" Kelsey Hayes wheel option, tilt, tach, vacuum, AM radio. Latest project truck 1972 Cheyenne Super 20 2WD, Dark Blue/White, 90K ACT. miles, 402, TH400, 4.10 open, tilt, tach, vacuum, A/C, AM/FM, manual throttle.. A mostly original paint never rusted Texas survivor... 2017 Sierra 1500 SLT 4WD, Black, 51k miles, 5.3, 6L80E, 3.42 LS, 20" polished wheels, everything but moonroof and 6.2... 2019 Canyon SLT 4WD, White, 71k miles, 3.6, 8L45, 3.23 LS, 18" wheels



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