I had read the thread about using the Beams belts for rear seat shoulder belts. But I've used Beams belts a few times and never liked them - very jerky with poor action. I had also purchase from CCOT a set of shoulder belts for my JF40 that I liked a lot, so I decided to try to install them in my FJ60, and it worked pretty well.
I mounted the retractors in using the holes under the C pillar trim above the wheel well, on the drivers side some wires run through it as well. I chose to make that hole a little lower so that the retractor sat in the correct spot. The end bolts to where the lap belt retractor bolted and the latch bolts where the original latch bolted. An upgrade is the plastic sleeve the latch sits in - definitely an improvement over the floppy stock lap belt.
Here are the obligatory pictures, if I uploaded them correclty
I mounted the retractors in using the holes under the C pillar trim above the wheel well, on the drivers side some wires run through it as well. I chose to make that hole a little lower so that the retractor sat in the correct spot. The end bolts to where the lap belt retractor bolted and the latch bolts where the original latch bolted. An upgrade is the plastic sleeve the latch sits in - definitely an improvement over the floppy stock lap belt.
Here are the obligatory pictures, if I uploaded them correclty