Rocker panel seam - The 1947 - Present Chevrolet & GMC Truck Message Board Network

tap500 · 12-22-2009, 02:08 AM

I am currently replacing my drivers and passengers rocker panels and have a question about the aft end seam on the outside of the cab between the rocker panel and the cab corner. Some builds are filling the seam and others leave the seam visible.

Did the factory leave the seam visible?

Are there any advantages or disadvantages to filling the seam besides the look?

Any help appreciated.

**John Fabris** · 12-22-2009, 02:15 AM

From Factory, seam is visible.

Filled's only advantange is for smoother custom look (in my opinion).
If you fill it, wether weld or bondo, make sure you have seam cleaned before you weld or bondo it, and then make sure you seal it well with correct paint. I filled mine, and like it. Make sure you have your doors hung when you do this soas to fill in gaps and either create a rounded corner or square corner to match your door corner to the door opening corner when your door is shut. (hope that makes sence)

usmcchevy · 12-22-2009, 02:38 AM

Hope this helps

http://67-72chevytrucks.com/vboard/s...d.php?t=377184

unclewatts · 12-22-2009, 04:42 AM

No the factory didn't fill the seam. I once read a real long thread on this board about filling the seam or not and a surprising number of people said it wasn't worth the trouble because anyone looking at the truck can barely see it anyway. I would say fill it if you're gonna make a custom along with smoothing the side lights, gas filler, cowl, etc. If it's just a daily driver you want, forget it.

tap500 · 12-22-2009, 01:50 PM

Thanks for your responses. i will be using it as a weekend hauler, so I will keep the seam.

mbgmike · 12-22-2009, 07:17 PM

Quote:

Originally Posted by unclewatts

No the factory didn't fill the seam. I once read a real long thread on this board about filling the seam or not and a surprising number of people said it wasn't worth the trouble because anyone looking at the truck can barely see it anyway. I would say fill it if you're gonna make a custom along with smoothing the side lights, gas filler, cowl, etc. If it's just a daily driver you want, forget it.

These trucks were built in many locations in the USA. As far as every truck getting this seam filled? Who knows. They did in FACT fill the seams on many and they filled many more places on these trucks. I drove and worked on these when they were new. These were not built to very good standards like now. Quite a few of my buddies worked on the assembly lines including some relatives. They even filled grinding and gouging marks on them. I have pulled plenty of them apart with seam sealer from the Factory

The seam was not filled flush but they did seal it

12-22-2009, 02:08 AM	#1
tap500 Registered User Join Date: Jul 2009 Location: Farmington CT Posts: 41	Rocker panel seam I am currently replacing my drivers and passengers rocker panels and have a question about the aft end seam on the outside of the cab between the rocker panel and the cab corner. Some builds are filling the seam and others leave the seam visible. Did the factory leave the seam visible? Are there any advantages or disadvantages to filling the seam besides the look? Any help appreciated.

12-22-2009, 02:15 AM	#2
John Fabris TOTY 2006 Join Date: Dec 1999 Location: Magalia CA USA Posts: 2,270	Re: Rocker panel seam From Factory, seam is visible. Filled's only advantange is for smoother custom look (in my opinion). If you fill it, wether weld or bondo, make sure you have seam cleaned before you weld or bondo it, and then make sure you seal it well with correct paint. I filled mine, and like it. Make sure you have your doors hung when you do this soas to fill in gaps and either create a rounded corner or square corner to match your door corner to the door opening corner when your door is shut. (hope that makes sence) __________________ John Fabris 67 C10 SWB Last edited by John Fabris; 12-22-2009 at 02:16 AM.

12-22-2009, 02:38 AM	#3
usmcchevy Has more rust than truck... Join Date: Apr 2005 Location: Ivanhoe, MN Posts: 2,421	Re: Rocker panel seam Hope this helps http://67-72chevytrucks.com/vboard/s...d.php?t=377184 __________________ 1972 Custom/10 SWB, 4.8/4l80e Build thread LSx Swap FAQ index

12-22-2009, 04:42 AM	#4
unclewatts 70 Chevrolet=Obsession Join Date: Jun 2009 Location: nice ca Posts: 1,067	Re: Rocker panel seam No the factory didn't fill the seam. I once read a real long thread on this board about filling the seam or not and a surprising number of people said it wasn't worth the trouble because anyone looking at the truck can barely see it anyway. I would say fill it if you're gonna make a custom along with smoothing the side lights, gas filler, cowl, etc. If it's just a daily driver you want, forget it. __________________ I'm Just like my truck. Old, Ugly and Grouchy. Except my truck starts easily in the morning and doesn't smoke! IT'S NOT EASY BEING GREEN! -Kermit the frog 1970 Chevrolet C-10 Longbed Stepside : 350, Muncie M20, 3.08 GM corp. positraction Forest green exterior/light green interior(Where all my money goes) 1996 Toyota Corolla (Parts runner)

12-22-2009, 01:50 PM	#5
tap500 Registered User Join Date: Jul 2009 Location: Farmington CT Posts: 41	Re: Rocker panel seam Thanks for your responses. i will be using it as a weekend hauler, so I will keep the seam.



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