Tips on rust in the roof - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Orence1 · 08-06-2002, 09:06 PM

Got a friend with a 70 Stepside. Only rust on the truck is the upper cab corners where the pillar meets the top. Both inside and outside. I know some of you have had to deal with this. Can you provide some direction?
Thanks,
Larry

big blue 72 · 08-06-2002, 10:30 PM

No Orence, but i'd like to know too gang!
anybody?

billogna · 08-06-2002, 11:09 PM

I'd like to know too. Once, I thought about cutting out the inside of the cab ceiling to gain access, then install some sound deadener against the outside layer of the cab and hide everything with an original headliner. I chickened out, though.

Huck · 08-07-2002, 08:01 AM

Inner roof rust is one of the more difficult areas to deal with, Depending on how far it's gone---. I believe both GMC Paul and WES sell a inner roof section that replaces the piece between the windshield and the start of the headliner. BUT the problem is that you may have to remove the windshield and know what you are doing in the "welding-bodywork area" etc. --depending. Minor rust can be addressed with spraying POR 15 into the windshield frame via rust holes or sunvisor mounting hole, etc. Just be sure to remove or retap any bolt/screw holes after getting POR15 on them as that stuff is tough. Cover with Bondo or whatever.
IF the damage is extensive (beyond inner roof) it's almost cheeper in the long run to have the cab roof replaced or replace the cab as the cost to repair can far exceed the cost of replacement.
Outer roof/windshield frame repair is similar to any other rust problem---cut out, POR15, seal, cover and paint.

08-06-2002, 09:06 PM	#1
Orence1 Registered User Join Date: Jan 2000 Location: Bothell, WA Posts: 548	Tips on rust in the roof Got a friend with a 70 Stepside. Only rust on the truck is the upper cab corners where the pillar meets the top. Both inside and outside. I know some of you have had to deal with this. Can you provide some direction? Thanks, Larry

08-06-2002, 11:09 PM	#3
billogna Registered User Join Date: Apr 2002 Location: Choctaw, OK Posts: 235	I'd like to know too. Once, I thought about cutting out the inside of the cab ceiling to gain access, then install some sound deadener against the outside layer of the cab and hide everything with an original headliner. I chickened out, though. __________________ '69 Chev Cust/10 swb, 350/700R4, 5"/6" '70 Chev C10 swb, 67 front, 454/700r4, 4"/5" '73 Chev stepper, 350/3 spd '84 Chev K20 350/4 spd '91 GMC 1500 Suburban 4x4, 350/700R4

08-06-2002, 10:30 PM	#2
big blue 72 Senior Member Join Date: May 2002 Location: hamilton,ohio,usa Posts: 1,499	No Orence, but i'd like to know too gang! anybody?

08-07-2002, 08:01 AM	#4
Huck Senior Member Join Date: Jun 2001 Location: Shelbyville, KY Posts: 3,261	Inner roof rust is one of the more difficult areas to deal with, Depending on how far it's gone---. I believe both GMC Paul and WES sell a inner roof section that replaces the piece between the windshield and the start of the headliner. BUT the problem is that you may have to remove the windshield and know what you are doing in the "welding-bodywork area" etc. --depending. Minor rust can be addressed with spraying POR 15 into the windshield frame via rust holes or sunvisor mounting hole, etc. Just be sure to remove or retap any bolt/screw holes after getting POR15 on them as that stuff is tough. Cover with Bondo or whatever. IF the damage is extensive (beyond inner roof) it's almost cheeper in the long run to have the cab roof replaced or replace the cab as the cost to repair can far exceed the cost of replacement. Outer roof/windshield frame repair is similar to any other rust problem---cut out, POR15, seal, cover and paint.



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