For what it's worth, I bought the rear seat back from a Grand, ripped it open and removed the rear headrest brackets by cutting the welds with a grinder. I then removed and opened up the seat back from my Cherokee and bolted the brackets to the metal seat back pan. I had to make up some custom spacer blocks out of wood to allow the brackets to sit nice. I bolted it together using self locking nuts (nylon inserts) so they won't rattle free. I cut back the foam a little so the cushion would lay nice.
Will it hold up in an accident? I don't know but it has to be better than not having it. Even if it gives way, it will have taken some of the force of the acident.
In hindsight, the only thing I'd do differently would be to spend more time on the spacer blocks. My blocks are flat which means the headrests come out of the setback parallel to the seat. Ideally, they'd pitch forward a bit to be closer to your head.
EVERYONE should do this mod!!
I did it with my friend assisting along the way. I now have headrests and they look great. No photos now but I'm excited!! I put some cup holders in as well and now I need to address the rust in my 'new' vehicle. Thanks all! Cheers........
It's a really tight fit inside the seat. Even if the clamps were to pull away from the copper strap, the bars on the headrest would still have to go all the way through the seat cushion to do any damage. I'm sure there are other ways to secure the retainers inside the seat frame as well - maybe use short bolts with locknuts on the copper straps? I just used what I had on hand at the time, and had no issues with it while it was in my ownership.
Hope that helps!
Thanks Steve. I had success with my copper strapping and clamps as per the instructions on the site and it is lookin good!! I'm so glad and it feels strong enough as you said......cheers.