This is on my 80"IMAG1417_LI (2)3.jpg Runs between the bulkhead pillar & bracket in corner seat box & front of tub IMAG1426.jpg One of mine was damaged so made a new one using a alum pool fence post cut in half.
Inkedsill_LI2.jpg You will see L bracket on back of bulkhead pillarInkedsill1_LI1.jpg this one shows the corner bracket , seat box to front of rear tub. Inkedsill1_LI.jpg As I said this is for an 80" not sure how it attaches to on the later models with the large instrument dash. These channels are a support for the outer edge of the floor.
Hope this is of some help.
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