Seat mounting holes

[x66 714]

Putting my car back together & noticed the seat mount on the floor has 8 threaded bolt holes for each bucket seat. When did that start?...Joe

[69Z28-RS]

There are two different locations for seat mounting, ~ 3/4" apart, which allows for moving the seat back by that much for long legged persons...  at least for 1969.  I'm unsure when/iff the '67-68 models has that option as well, but I'm sure someone does... 

[x66 714]

My friend's 01B LA doesn't have the the new pattern. Just an interesting observation.....Joe

[bcmiller]

Guess I never paid much attention to this. Can not remember seeing this on ANY cars.  Possibly an extended 69 model year thing?

Have any close up pics of the holes?

[uscrichter]

You will want to use the rear mounting holes and I have two set on both my '68's and my '69. NOR cars

[william]

Noticed it on my 1st Z/28 many years ago; mid-Sept '69 build. Think it is a late production change.

Mentioned in the later revision of JMs '69 book.

[Petes L48]

Yep, only one set of holes on my 67

[bcmiller]

Putting my car back together & noticed the seat mount on the floor has 8 threaded bolt holes for each bucket seat. When did that start?...Joe

Build date of car?

Pics?

[x66 714]

Putting my car back together & noticed the seat mount on the floor has 8 threaded bolt holes for each bucket seat. When did that start?...Joe

Build date of car? 08/28/1969. I'll get a picture tjis weekend...Thanks, Joe

Pics?

[R68GTO]

My 09D 1969 car has 2 sets of holes also.

[rszmjt]

My 06A -69 RS Z28 has both sets of holes . Canadian docs Owned since 1974

[x66 714]

Here's a picture of mine.....Joe

[ric1969]

   My 01B LA has one set of holes , My 02B LA has two set of holes both 69 , anything to do with special interior Z23

[Elefuntman]

My 04b 69 LA built has 2 sets, and 06a 68 Nor built just has one set. I made "extensions" for my 68.

[bcmiller]

Well the more data points we get, the better we can figure out when this started. Seems like it started earlier at LOS than NOR.