I have a somewhat silly question for anyone that has a 66-67 Lemans/GTO.

 

I noticed that my driver's side seat back tends to lean further back on the right (inner) side and a little investigation found that the rubber pad was missing off the plate for the bumper. Then I noticed there has never been a bumper on the left (outer) side of the driver's seat. My first thought was that maybe it's not necessary with the seat back locking mechanism on that side. So I looked at the passenger side that also tends to lean further back on the left (inner) side. That seat has an intact bumper on the right (outer) side the same side as the seat back locking mechanism so that blew my theory about the driver's side seat not having a second bumper. I'm including a picture that I found on the web, (not my seat) that shows the seat having one bumper so mine is not the only only one like this. 

 

I would like to put a bumper on both sides of both seats, but I don't want to punch a hole in what are supposed to be the original seat covers not knowing if there's a place to mount the second bumper on each seat. Notice the seat back (same as mine) has the heavy bracket on the seat back that should match up with bumpers on both sides of the seat lower.

 

Any advice would be greatly appreciated.

 

Rick

Having more time then $$$. I re-upholstered my GTO seats. Came out OK.  I have bumpers on both sides. Rub the area where the screw hole should be, with a pencil eraser.  If the holes there...and it should be, it will show as a small dent.  Check Original Parts Group for bumper replacements.

Thanks JUSTA6, I did feel what I think are screw holes in the seat frames and found a set of four of the bumpers that I plan to order. Appreciate the feedback and suggestions.

I am with JUSTA putting in the second bumper. I suspect that when your car was built, someone on the assembly forgot or didn't have time to put the second bumper in the seat. You are not hurting the value of the car by adding the second bumper. In fact, if the original is worn, you might to replace it as well.

Thanks guys. Ordered a set of four bumpers from Ames Performance yesterday.

Received the new seat bumpers today from Ames Performance and decided to locate the screw holes with a straight pin on the sides that never had the bumpers.. That worked perfectly and they are all installed. It made a world of difference in the way the seat back feel. Nice and solid and straight from one side to the other. The bumpers from Ames matched the one good one I had perfectly.

Sometimes the smallest things make the biggest difference.

I  had the same problem and put one on both sides of the seat. works fine to keep the seat strait and tight.