I have been wanting to put seat belts in my 4100 since I bought it, but was not coming up with an easy effective way to mount them to the floor, so I simply mounted them to the back of the seat frame with a 51 inch piece of angle iron spanning across the back where the the top, and bottom cushions meet. It keeps the ends of the belts right next to your hips. I know it is not as effective as a 3-point belt, but I figure the seat frame is sturdy enough to at least keep me inside the truck if something bad happened. Plus it will keep the grandkids from sliding across the seat into the door while turning. I used 48 inch lap belts, and will install a center belt after I take the ones out of my 55 Chevy 210 which I temporary installed before I put in 5-point harnesses this winter.
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Last edited by 4100 Fire Truck; 09/23/2021 12:44 PM.