The A and B bodies have different floor pans but conceptually they are the same in that the outboard floor braces for the seats are the same regardless of bench or bucket but then for buckets a set of inner floor braces was welded in by the factory. The actual floor pan was the same regardless of seat type.
The B bodies had much taller seat tracks as the seats are higher relative to the floor as compared to the A bodies. The actual bucket seats themselves interchange between A and B's but not the bench (B bench seats are wider and deeper than the A version).
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My Break Away Squad
1969 Fbird (base OHC, 350, 400HO & Sprint Cvt’s - 400HO & TA ht’s)
1969 Custom S 2dr ht
1969 LeMans (2dr & 4dr ht & Cvt)
1969 LeMans Safari wagon
1969 GTO (2 Cvt, 2 ht & Judge ht)
1969 Cat (3 Cvt’s & a 2dr ht)
1969 Ventura wagon 2 seat
1969 Exec 4dr post
1969 2 Bonnie Cvt's & 2 wagons
1969 Bonnie Brougham (4dr ht & Cvt)
1969 Grand Prix 2 SJ’s
1969 2+2 2dr ht (Canadian)
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