Reply
 
Thread Tools Display Modes
  #1  
Old 06-14-2026, 04:02 PM
Gary Logan's Avatar
Gary Logan Gary Logan is offline
Formerly GnXRanch
 
Join Date: Dec 2002
Location: St. Augustine, FL
Posts: 282
Default B-Body Back Seat Interchange

I have scoured the interwebs looking for interchange info for full size back seats. I am interested in fit for the frames and not so much upholstery patterns.

Specifically, what back seats from other GM B-Body cars will fit into a '65 2-dr hardtop?

I think (dangerous, I know) the '65/'66 of each model/style are the same.
So, which are different / same: 2dr hdtp, 2dr sedan, convertible, 4dr hdtp/sedan?
Do all like model/style bottoms interchange? It looks like backs are different depending on width by model and speaker/no speaker and then there is the folding arm rest on the GP / Bonneville.

Some sources say the seats frames are interchangeable up to '70, some say '68, others say just '65/'66, and then of course google AI tells you something different every time you ask.

I believe like year and style (2/4dr, couple/sedan) from other B-body cars also interchange.

What is the truth? I just want to know what my options are if I replace the busted back seat bottom frame in the 2+2. Someone about an hour south of me had a couple of '68 seats for reasonable price that I can go pick up and not have to ship. -thanks

__________________
65 Catalina 2+2, 455, 6x-8, 2802, 4-spd
65 Catalina 4dr Hardtop, 389 4v, Auto
  #2  
Old 06-14-2026, 04:50 PM
rustyrelic rustyrelic is offline
Senior Chief
 
Join Date: Dec 2005
Posts: 478
Default

I believe you will find that the convertible rear seats are narrower than the 2 and 4 door. I know that doesnt help much, but its maybe a start.

  #3  
Old 06-14-2026, 10:43 PM
imposter's Avatar
imposter imposter is offline
Chief Ponti-yacker
 
Join Date: Apr 2003
Location: New York,NY
Posts: 684
Default

also wondering if a 2dr seat with rear speaker would fit in a 4dr H/T

  #4  
Old 06-15-2026, 02:32 PM
Gary Logan's Avatar
Gary Logan Gary Logan is offline
Formerly GnXRanch
 
Join Date: Dec 2002
Location: St. Augustine, FL
Posts: 282
Default

Quote:
Originally Posted by imposter View Post
also wondering if a 2dr seat with rear speaker would fit in a 4dr H/T
I don't have my 4drht here but going off memory, the seat is wider because there are no side arm rests and filler panels. The seat bottom is also more rounded on the corners.

__________________
65 Catalina 2+2, 455, 6x-8, 2802, 4-spd
65 Catalina 4dr Hardtop, 389 4v, Auto
  #5  
Old 06-17-2026, 10:07 PM
gtoguys gtoguys is offline
Senior Chief
 
Join Date: Nov 2002
Location: Waunakee, Wisconsin
Posts: 255
Default

If you can wait until January, I have a complete back seat for a 66 Bonneville 2dr hardtop in my basement. It is taking up space and I would like to get rid of it.

  #6  
Old 06-17-2026, 10:09 PM
gtoguys gtoguys is offline
Senior Chief
 
Join Date: Nov 2002
Location: Waunakee, Wisconsin
Posts: 255
Default

Forgot to finish my thought. I will be driving to Florida in January, we can meet up then.
Sheldon

  #7  
Old 06-18-2026, 11:21 AM
Gary Logan's Avatar
Gary Logan Gary Logan is offline
Formerly GnXRanch
 
Join Date: Dec 2002
Location: St. Augustine, FL
Posts: 282
Default

Quote:
Originally Posted by gtoguys View Post
Forgot to finish my thought. I will be driving to Florida in January, we can meet up then.
Sheldon
Thanks Sheldon, I sent you a PM

__________________
65 Catalina 2+2, 455, 6x-8, 2802, 4-spd
65 Catalina 4dr Hardtop, 389 4v, Auto
  #8  
Old 06-18-2026, 09:56 PM
gtoguys gtoguys is offline
Senior Chief
 
Join Date: Nov 2002
Location: Waunakee, Wisconsin
Posts: 255
Default

Please send me another PM with the correct phone number. I tried sending you a text, but it came back from someone else!

Reply


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 04:51 PM.

 

About Us

The PY Online Forums is the largest online gathering of Pontiac enthusiasts anywhere in the world. Founded in 1991, it was also the first online forum for people to gather and talk about their Pontiacs. Since then, it has become the mecca of Pontiac technical data and knowledge that no other place can surpass.

 




Copyright © 2017