73-75 vs 76-77 bucket seats

[smupser]

Yes 73-75 foam is different shape then 76-77. Not sure if actual frames are different but I do know one difference is gonna be the rear bolt hole spacing is different, 73-75 is spaced at 3.75 inches and 76-77 is spaced at 5 inches. The only time this becomes an issue is if your trying to set up the seats in a truck with truck brackets. If your using k5 brackets to go into a blazer than it doesn’t apply as that 2nd inner bolt hole isn’t used. Besides that I believe the seats are identical

What exactly are you trying to figure out to do? If you have a set of 73-75 seats and want to trade for a 76-77 set I have 3 nice pairs.

[ky-donzi]

Thanks for the reply

I’ve got two complete sets of seat and brackets. the later brackets and seats are in better shape and I would rather use them but the holes in the floor of my 73 k5 seem off. I know that the seats are blazer seats I took them out..Plus to complicate it I have distintive industry seat covers ordered for the early seats.

I’m trying to cobble one set out off parts

[smupser]

Originally Posted by ky-donzi

Thanks for the reply

I’ve got two complete sets of seat and brackets. the later brackets and seats are in better shape and I would rather use them but the holes in the floor of my 73 k5 seem off. I know that the seats are blazer seats I took them out..Plus to complicate it I have distintive industry seat covers ordered for the early seats.

I’m trying to cobble one set out off parts

Post some pics of the seats and the brackets so we can see what your working with

[hooverfish]

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[dagnabbitt]

I saw your post on TCKR's thread and thought I would ask here - instead of there - about the differences between 73-75 and 76-77. If you would post some pics of what you got that would be great, there is insufficient info out there regarding squarebody buckets, IMO. What you have could be helpful.

I was lucky enough to score some "medallion" style buckets that I now know are 76-77 seats, but my goal is to reupholster them into 73-75 versions. I am wondering if there is any reason I could not simply refoam and recover them, or if there is some structural difference that means I should abandon this idea.

[smupser]

Originally Posted by dagnabbitt

I saw your post on TCKR's thread and thought I would ask here - instead of there - about the differences between 73-75 and 76-77. If you would post some pics of what you got that would be great, there is insufficient info out there regarding squarebody buckets, IMO. What you have could be helpful.

I was lucky enough to score some "medallion" style buckets that I now know are 76-77 seats, but my goal is to reupholster them into 73-75 versions. I am wondering if there is any reason I could not simply refoam and recover them, or if there is some structural difference that means I should abandon this idea.

Besides inner rear rivnut spacing being different, frames should be the same but not 100% sure. So yes, hypothetically you should be able to refoam with 73-75 and use corresponding covers.

Let me know if you try this. I have multiple sets of 76-77 and would like one more of 73-75 style.

[smupser]

If there was a difference in the frame I would think it would be at the tops where on the early style it’ll be more narrow than the later style