AMD floor pans

[RacerX]

Did a quick search to see if anyone had mentioned anything about these before and didn't see anything...

Did a test-fit of the new floor pan before removing any additional factory metal and noticed a few oddities.

Why are there no flanges on the sides as with the original floor?    This will make a less-than-ideal fit at the
rockers.   There are a couple small flanges, and a couple areas where the metal can be bent up to form a
small flange but for the most part there are none.   

Also, what is that big dimple in the hump for?   The original floor doesn't have it and don't recall ever seeing
one on a factory floor...     

Otherwise, the fit is decent...  the holes for the seats match the factory brackets nearly exactly and the
curve of the tunnel follows the factory firewall pretty well.   A bit of tweaking to get it to lay right and it
will do the job, just wondering about the lack of flanges on the edges...   

If this is how AMD floor pans are, what have you guys been doing for the install process on these without
any flanges to weld to the rockers?

Floor is coming back out so other work can be done but wanted to test it now while there are three fixed
factory reference points to guage fit (firewall, left and right rocker).

[gzig5]

This is how mine fit to new AMD rockers on the passenger side. The driver side to the original rockers look pretty much the same. I didn't pull the floor pan out so I can't say what was there before, but I imagine you just smear some seam sealer over it and you never know the difference. It looks like the rocker has enough of a flange to get a good weld on it so I'm not concerned with what I have

[RacerX]

This is how mine fit to new AMD rockers on the passenger side. The driver side to the original rockers look pretty much the same. I didn't pull the floor pan out so I can't say what was there before, but I imagine you just smear some seam sealer over it and you never know the difference. It looks like the rocker has enough of a flange to get a good weld on it so I'm not concerned with what I have

The original floor had a full flange down the full length of both sides, as shown in the photo below.   This is what
was spot welded to the rockers...    you can see where it was before in the second and third photos above.   Where
there is no white primer is where the flange of the old floor was.

Yours looks like there is a full ledge on the rockers supporting the floor from underneath?    Mine don't have that and
there is just an open void where there is no flange.   There is a ledge in a couple places but it doesn't run near as far
as what you have (judging by the bumps from the welds)

Yours also is a fair distance away from the vertical portion of the rockers but once seam sealer is applied you will
never see that. 

None of this presents any insurmountable obstacles, just adds a bit more work.   

[BFM_Cuda]

The original floor had a full flange down the full length of both sides, as shown in the photo below.   This is what
was spot welded to the rockers...   

I think the 71+ up had the vertical flange, 70 did not... you have the wrong floor pan. 

[RacerX]

The original floor had a full flange down the full length of both sides, as shown in the photo below.   This is what
was spot welded to the rockers...   

I think the 71+ up had the vertical flange, 70 did not... you have the wrong floor pan. 

This is exactly what has happened, but in reverse...   70 has the flange, 71-4 doesn't     Bitten again by the
factory's use of 1970 parts on this early built 71.     

Confirmed by looking at the pictures of the floors on AMD's website...  1970 has the flange, 1971-4 does not.
This floor would NOT work with the factory rockers in this car, which are the 1970 style.

So now I suppose the question is do I use the 71-up floor and rocker panels that I already have or order
the 1970 versions?   

Wonder how many other little gotchas like this are still waiting to pop up....   

[Rich G.]

Check your seat belt holes too. 70 and 71 are in different locations. I found that out when I did my 71 floor and the car was built with 70 floors.

[RacerX]

Check your seat belt holes too. 70 and 71 are in different locations. I found that out when I did my 71 floor and the car was built with 70 floors.

Already found that when I pulled the rear floor pans out.   The AMD '70 rear pans don't match either so will probably just move
the seatbelt hole to where it is supposed to be using the original reinforcement bracket.