Roof Seam... - The 1947 - Present Chevrolet & GMC Truck Message Board Network

longnlow72 · 03-31-2006, 12:53 AM

I was thinking about welding & filling the roof seam, any thoughts pro or con?

Rollie396 · 03-31-2006, 01:32 AM

I'm considering this as well.Watching this one for advice and/or warnings.

northcountry67 · 03-31-2006, 01:33 AM

I did the same to mine. I can't think of any down side.

Rollie396 · 03-31-2006, 01:40 AM

How did you go about it?Just clean out the sealer and tack it up?

Looks great BTW!

longnlow72 · 03-31-2006, 01:40 AM

ive heard mention of flexing at that point but i have never heard from someone who has actually done it and knows, have you had your truck on the road jsut want to be sure before i do it then have it crack or something, anyone else?

BowTieMan · 03-31-2006, 01:47 AM

I know on the s-10 blazers there roof seems on the side is a flex point and they crack. But I dont know about our trucks and was wondering the same thing.

longnlow72 · 03-31-2006, 02:06 AM

hmmm....anyone else?

northcountry67 · 03-31-2006, 08:13 AM

Unless you are driving the thing in an off road derby like Baja, I could not imagine that the cab would need to flex there. You mentioned an S-10 blazer, but look at the length and material that their roof are made of and that they have a one piece body. I'm sure GM put this seam there so that the parts they stamped would not be so large. I ran a weld bead down the length of the seam, then finished it with a little filler. I belive even Chip Foose has done this.

70c10 · 03-31-2006, 08:16 AM

That seam filled in looks way better in my opinion. Nice job!

HotRod71 · 03-31-2006, 09:30 AM

Mine has been filled by the PO. It is cracked all to crap. I do not know if he welded it or just filled it. Looks bad though. And, the seam is a super sharp edge. Not round and smooth. Just bad bodywork in my opinion.

GruntyPants · 03-31-2006, 09:45 AM

Ok, I guess I have to be the ignorant one here, but what seam are you guys talking about? I haven't taken my paint down yet, so maybe I just haven't seen it.

Zonaman · 03-31-2006, 10:45 AM

Roof seam- aka drip rail and/or the seam along top rear of cab roof. Check this thread out. Bowtietruck turned me on to 3M #8703. A self leveling expoy. Worked really, really well on mine!

longnlow72 · 03-31-2006, 04:32 PM

Quote:

Originally Posted by GruntyPants

Ok, I guess I have to be the ignorant one here, but what seam are you guys talking about? I haven't taken my paint down yet, so maybe I just haven't seen it.

this one....

TravisH · 03-31-2006, 09:08 PM

first thing I did to my truck

chevyboy55 · 04-01-2006, 12:40 AM

Quote:

Originally Posted by TravisH

first thing I did to my truck

Travis, Did you weld it or seam seal it? How long ago did you do it?

TravisH · 04-01-2006, 11:37 AM

Wire wheeled out the seam seal and welded it. Did it the first or second day, april last year?

Still working on the truck, turned into a bigger project than I planned. I don't have any worries about it being a flex point; the cab is fairly rigid and I think it was just done for ease of manufacturing

northcountry67 · 04-01-2006, 01:00 PM

Quote:

Originally Posted by HotRod71

Mine has been filled by the PO. It is cracked all to crap. I do not know if he welded it or just filled it. Looks bad though. And, the seam is a super sharp edge. Not round and smooth. Just bad bodywork in my opinion.

It sounds to me like the po did not weld it and just filled it with poly. When you do your welding, keep a bucket of water and a rag handy to cool the roof and back panel to keep from warping, grind it smooth, add a little filler to finish it and presto, no more seam.

72MARIO · 04-01-2006, 01:26 PM

I t's funny that the only seam I left. I kinda like the look of it. My truck was original paint and it only got one coatr of thin primer then paint so it still looks clean and not all caked up.

I would advise weldind the drip rail seams up and griding them smooth I wish I would have thought of doind that to my truck That way there is no need for the seam sealer that WILL crack in time.

FRENCHBLUE72 · 04-01-2006, 01:42 PM

That seam is on my list of things to do yet and at my pace it will be about 40 years from now..

Frizzle Fry · 04-01-2006, 07:21 PM

I saw it done in a mag. They actually cut about 2.5" on either side of the seam and replaced the whole thing with nice curved sections. Looked way better than just welding/filling it IMO. It was the same truck that had the drip rails removed and reshaped the "right" way. The article showed the process.

03-31-2006, 12:53 AM	#1
longnlow72 Registered User Join Date: Aug 2004 Location: SW Washington Posts: 947	Roof Seam... I was thinking about welding & filling the roof seam, any thoughts pro or con? __________________ 72 Chevy lwb, cowl hood, shaved antenna, shaved bedrails, blazer tank, sidemarker fill, 1pc windows, flowmaster 40's, alpine deck, infinity 6x9's, infinity 4"ers, 2 jl audio 10w0's, grant wheel, keyless entry and alarm, more waiting to be done...

03-31-2006, 01:32 AM	#2
Rollie396 someday it will be done! Join Date: Sep 2004 Location: Lloydminster,AB. Canada Posts: 1,620	Re: Roof Seam... I'm considering this as well.Watching this one for advice and/or warnings. __________________ '72 C-10 Proud owner of a million new and used pieces that used to be and will once again be(god willing) a testament to the term "they don't build em like that anymore. '80 LWB 2wd beater '67 GMC long fleet (cab donor) '66 long step (parked till it's turn comes around) '65 short step (parts truck that will donate it's bed and possibly frame to the '66) '06 Grand Prix wife's car (she hardly lets me touch it) my pics

03-31-2006, 01:33 AM	#3
northcountry67 Registered User Join Date: Dec 2005 Location: Lengby, Minnesota Posts: 225	Re: Roof Seam... I did the same to mine. I can't think of any down side.

03-31-2006, 01:40 AM	#4
Rollie396 someday it will be done! Join Date: Sep 2004 Location: Lloydminster,AB. Canada Posts: 1,620	Re: Roof Seam... How did you go about it?Just clean out the sealer and tack it up? Looks great BTW! __________________ '72 C-10 Proud owner of a million new and used pieces that used to be and will once again be(god willing) a testament to the term "they don't build em like that anymore. '80 LWB 2wd beater '67 GMC long fleet (cab donor) '66 long step (parked till it's turn comes around) '65 short step (parts truck that will donate it's bed and possibly frame to the '66) '06 Grand Prix wife's car (she hardly lets me touch it) my pics Last edited by Rollie396; 03-31-2006 at 01:41 AM.

03-31-2006, 01:40 AM	#5
longnlow72 Registered User Join Date: Aug 2004 Location: SW Washington Posts: 947	Re: Roof Seam... ive heard mention of flexing at that point but i have never heard from someone who has actually done it and knows, have you had your truck on the road jsut want to be sure before i do it then have it crack or something, anyone else? __________________ 72 Chevy lwb, cowl hood, shaved antenna, shaved bedrails, blazer tank, sidemarker fill, 1pc windows, flowmaster 40's, alpine deck, infinity 6x9's, infinity 4"ers, 2 jl audio 10w0's, grant wheel, keyless entry and alarm, more waiting to be done...

03-31-2006, 01:47 AM	#6
BowTieMan Registered User Join Date: Dec 2003 Location: Glendale Arizona Posts: 747	Re: Roof Seam... I know on the s-10 blazers there roof seems on the side is a flex point and they crack. But I dont know about our trucks and was wondering the same thing. __________________ "A true hotrodder wouldn't be content untill he had created a car so violent, so hairy, so totally sick that the very act of dropping the hammer would result in instant death. Anything less results in the need to go faster." - Tony DeFeo

03-31-2006, 02:06 AM	#7
longnlow72 Registered User Join Date: Aug 2004 Location: SW Washington Posts: 947	Re: Roof Seam... hmmm....anyone else? __________________ 72 Chevy lwb, cowl hood, shaved antenna, shaved bedrails, blazer tank, sidemarker fill, 1pc windows, flowmaster 40's, alpine deck, infinity 6x9's, infinity 4"ers, 2 jl audio 10w0's, grant wheel, keyless entry and alarm, more waiting to be done...

03-31-2006, 08:13 AM	#8
northcountry67 Registered User Join Date: Dec 2005 Location: Lengby, Minnesota Posts: 225	Re: Roof Seam... Unless you are driving the thing in an off road derby like Baja, I could not imagine that the cab would need to flex there. You mentioned an S-10 blazer, but look at the length and material that their roof are made of and that they have a one piece body. I'm sure GM put this seam there so that the parts they stamped would not be so large. I ran a weld bead down the length of the seam, then finished it with a little filler. I belive even Chip Foose has done this.

03-31-2006, 08:16 AM	#9
70c10 67-72 Addict! Join Date: Feb 2002 Location: The TAX State! Posts: 7,856	Re: Roof Seam... That seam filled in looks way better in my opinion. Nice job! __________________ Jim 1970 C/10 Fleetside w/Ghost Flames Lowered 4.5" front and 4" rear (Raked) 355/350 Turbo w/shift kit 10" Redneck Performance Verter w/2500 stall Hooker Super Comps part#2808-1 Performer RPM Air-Gap 12 Bolt w/3:73 gears- Eaton Posi Comp Cams XE262 with 1.6 Crane Energizers, Road Demon 625 and Brodix IK 180 heads

03-31-2006, 09:30 AM	#10
HotRod71 Short, Fleet, Slammed, V8 Club Join Date: Mar 2006 Location: Kingsport,TN Posts: 450	Re: Roof Seam... Mine has been filled by the PO. It is cracked all to crap. I do not know if he welded it or just filled it. Looks bad though. And, the seam is a super sharp edge. Not round and smooth. Just bad bodywork in my opinion. __________________ Bill 71 Chevy SWB Fleetside (WIP) www.4x4grace.com

03-31-2006, 09:45 AM	#11
GruntyPants Registered User Join Date: Jan 2006 Location: Kennesaw GA Posts: 95	Re: Roof Seam... Ok, I guess I have to be the ignorant one here, but what seam are you guys talking about? I haven't taken my paint down yet, so maybe I just haven't seen it. __________________ -- Shawn '67 Short Step '70 Short Wide

03-31-2006, 10:45 AM	#12
Zonaman Registered User Join Date: May 2004 Location: Chandler, AZ Posts: 519	Re: Roof Seam... Roof seam- aka drip rail and/or the seam along top rear of cab roof. Check this thread out. Bowtietruck turned me on to 3M #8703. A self leveling expoy. Worked really, really well on mine! __________________ 69 C-10 LWB, 350, 700r4, 3.73 posi-traction, front disc brakes. Built for the desert- She can take the heat! Vivat Rex Chevus! Last edited by Zonaman; 03-31-2006 at 10:48 AM.

03-31-2006, 09:08 PM	#14
TravisH Registered User Join Date: Mar 2005 Location: Alberta Posts: 316	Re: Roof Seam... first thing I did to my truck

04-01-2006, 11:37 AM	#16
TravisH Registered User Join Date: Mar 2005 Location: Alberta Posts: 316	Re: Roof Seam... Wire wheeled out the seam seal and welded it. Did it the first or second day, april last year? Still working on the truck, turned into a bigger project than I planned. I don't have any worries about it being a flex point; the cab is fairly rigid and I think it was just done for ease of manufacturing

04-01-2006, 01:26 PM	#18
72MARIO Registered User Join Date: Nov 2000 Location: Huntsville Ontario Canada Posts: 4,051	Re: Roof Seam... I t's funny that the only seam I left. I kinda like the look of it. My truck was original paint and it only got one coatr of thin primer then paint so it still looks clean and not all caked up. I would advise weldind the drip rail seams up and griding them smooth I wish I would have thought of doind that to my truck That way there is no need for the seam sealer that WILL crack in time. __________________ 1968 Suburban numbers matching all original truck now equipped with 6.0/4L80 on Accuair http://67-72chevytrucks.com/vboard/s...d.php?t=625017 1967 C/20 6.0/4L80 Roofing Truck 1990 V2500 Suburban "Plow Truck" 2005 TAHOE DD



Register or Log In To remove these advertisements.

04-01-2006, 01:42 PM	#19
FRENCHBLUE72 PROJECT 7DEUCE Join Date: Dec 2002 Location: GRANTS PASS OR Posts: 21,606	Re: Roof Seam... That seam is on my list of things to do yet and at my pace it will be about 40 years from now.. __________________ GO BIG GREEN GO DUCKS MEMBER #6377 72 k-5 daily driver 6'' lift 35'' 350-350-205 slowly getting rust free. Project "7DEUCE" check out my build http://67-72chevytrucks.com/vboard/s...d.php?t=267665 Tim Powell..R.I.P EastSideLowlife..... R.I.P..

04-01-2006, 07:21 PM	#20
Frizzle Fry Registered User Join Date: Aug 2005 Location: Hillsboro Oregon Posts: 6,449	Re: Roof Seam... I saw it done in a mag. They actually cut about 2.5" on either side of the seam and replaced the whole thing with nice curved sections. Looked way better than just welding/filling it IMO. It was the same truck that had the drip rails removed and reshaped the "right" way. The article showed the process.

Register or Log In To remove these advertisements.