I'm in the process of doing an off frame 50 3100 for my sister ,it was my granddads truck anyway I was wanting to know if anyone had replaced the front bench seat with any later modle. She is expecting grandkidds soon and wants to be able to ride two with a car seat in the middle all strapped in. Thanks for any reply.
You could just get a lap belt from our host, and install it where you need it. That's exactly what I did, and for the same reason. I wanted to be able to take my daughter to her grandparents house to watch football. ;^) Good luck, and be sure to post pictures!
Lot of people use early 90's bench seat, as they fit nicely. I used a third row bench out of an Astro van. Tilt function, center console and seat belts.
I used a set from a 90s mark5 Split bench 6 way power drivers side width is perfect Just needed to fabounrs. Center a rests flip up for bench Hope this helps Joe