Best way to align seat brackets on new floor pan

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Geo's66

Master Mechanic
Oct 7, 2014
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guys, have my new AMD floor pan in on my 78 monte. What's best way to align/measure where to weld in bucket seat brackets to new floor? The brace going across pan I traced on sides so I know where that lines up, it's the brackets to seats I'm unsure of. How have you done this? Also, the pan itself although i trimmed to fit and line up in rear to the edge of seat hump, from below, the pan bottom is slightly below outer edge to edge of pinch welds, that seem correct? Thanks,
 
Not sure on how far you are but could you bolt the brackets to a seat and square it up and then tack weld the brackets to the new floor and then remove the seats to do the finish weld.
 
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Did you cut out the bench seat brackets? The buckets use the same outer bracket locations. Make sure the bucket tracks are even, then bolt the inner floor mounts to them, and mark the locations, then weld away.
 
Not too far, that's the way I'll do it... Thanks... Only thing that has me concerned as I'm thinking of it is the new pan being too low... It shouldn't be as I lapped it over the top of the rear hump, just it's below the side pinches if I ran a straight edge across the bottom. I didn't measure this before I removed the old one. Rookie move.
 
The bucket brackets are flat sheet metal folded on four sides into a trapezoid. If the seats are not level, with a little work, you could extend the sides of the inners - the carpet will cover up the 'custom' work.
 
The seats are original buckets going back in. The brackets are the folded metal that have some "give" I know. Want to get them close to correct as possible before stuff gets welded, etc... After this part Is done, body shell goes to paint. Just want to be accurate so I'm not tearing stuff apart after I start putting carpet, etc back in car and look like I'm always looking out the window when done, lol... Thanks guys, other project this weekend is welding in my own cage nuts in front passenger corner, rear passenger trunk.
Couldn't believe how much debris, dried rust, etc. In the front one once I cut a flap out to get at it... I'll clean and rust/paint in there while it's open. Knowing what in that one and car is a shell, would you open up the other ones if nothing else to clean them?
 
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