47-55.1 Easy Floor Panel Installation Question - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Dongray · 03-13-2020, 07:56 PM

I have what should be a quick easy question. How is everyone tying in the aft end of a floor panel with the flange of the seat riser? Do people just overlay the floor panel and bead weld the new seam? If so what haapens where the floor panel steps down off the seat riser flange? I have seen one person cut the original floor from underneath the seat riser flange and install the new floor under the flange. It looked completely original but I'm not confident I could cut the original floor and not cut through the seat riser flange.

Thanks!

**mr48chev** · 03-14-2020, 12:10 AM

If it were me I would cut the spot welds and at least lift the seat base enough to properly install the new floor.

There is no law that says you can't trim the new piece to fit and work around the seat frame though. I'd say most guys trim away the bad part of the old floor and trim the patch panel to fit.

MiraclePieCo · 03-14-2020, 03:54 AM

The general rule of patch panels is to leave as much original metal as possible and trim the patch panel to fit. Is your floor so bad that you really need to go back that far?

I've removed seat pedestals before; they are seriously spot welded down - to detach it would cause more problems than it fixes.

Ultimately it doesn't matter if you trim it or overlap it because it's going to be covered by sound deadener, carpet and/or floormat and never show anyway.

03-13-2020, 07:56 PM	#1
Dongray Registered User Join Date: Oct 2017 Location: Fort Worth Texas Posts: 88	Easy Floor Panel Installation Question I have what should be a quick easy question. How is everyone tying in the aft end of a floor panel with the flange of the seat riser? Do people just overlay the floor panel and bead weld the new seam? If so what haapens where the floor panel steps down off the seat riser flange? I have seen one person cut the original floor from underneath the seat riser flange and install the new floor under the flange. It looked completely original but I'm not confident I could cut the original floor and not cut through the seat riser flange. Thanks! Attached Images

03-14-2020, 12:10 AM	#2
mr48chev Registered User Join Date: Jul 2007 Location: Toppenish, WA Posts: 15,705	Re: Easy Floor Panel Installation Question If it were me I would cut the spot welds and at least lift the seat base enough to properly install the new floor. There is no law that says you can't trim the new piece to fit and work around the seat frame though. I'd say most guys trim away the bad part of the old floor and trim the patch panel to fit. __________________ Founding member of the too many projects, too little time and money club. My ongoing truck projects: 48 Chev 3100 that will run a 292 Six. 71 GMC 2500 that is getting a Cad 500 transplant. 77 C 30 dualie, 454, 4 speed with a 10 foot flatbed and hoist. It does the heavy work and hauls the projects around.

03-14-2020, 03:54 AM	#3
MiraclePieCo Registered User Join Date: Sep 2014 Location: USA Posts: 2,249	Re: Easy Floor Panel Installation Question The general rule of patch panels is to leave as much original metal as possible and trim the patch panel to fit. Is your floor so bad that you really need to go back that far? I've removed seat pedestals before; they are seriously spot welded down - to detach it would cause more problems than it fixes. Ultimately it doesn't matter if you trim it or overlap it because it's going to be covered by sound deadener, carpet and/or floormat and never show anyway. __________________ 1951 Chevy Panel Truck



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