Since it would be my kids riding in the back seat, I installed 4 point harnesses in my 63 Polara 500. It came out good. I looped the should straps up over the top of the back seat and down into the trunk. I anchored them to the two metal cross braces that cross the back seat in the trunk; they seemed pretty beefy. The lap belts I attached to the floor under the rear seat with anchor points where the floor was beefier.
I also put 4 point harnesses in the front, but they are less effective. I didn't want to start bolting or welding to the roof and I don't have a roll cage. So I mounted the lap belts to the stock location and the shoulder straps to the rear seat floor pan behind the front seats and drape the shoulder straps over the top of the front seat. There's enough play in the shoulders that I'd still probably go forward into the steering wheel, but I think they're more effective than just lap belts.
- Jim
Jim Altemose, Long Island, NY
'63 Polara 500 (Max Wedge)
'63 Polara 500 (383)
'65 Belvedere I (Street Wedge)
'71 BroncoThis is what I bought to go with the belts (which are very nice AND made in the USA) I bought from these guys. http://www.seatbeltsplus.com/product/FHD-1046-2.html
I'm more than a little concerned about welding upside down on sheet metal, because I don't trust my welding skills (very rusty) any more. lol
Nick, I'm not sure if I'll need the backing plates, but I'll keep you in mind. :)
Thanks, all!
~S~