Before I swapped the cab, I swapped in bucket seats in my 3rd gen. Only spot that was missing was the front bolt near the trans tunnel for each seat. For the seatbelt bolts, I just used the rear seat mount bolt. A bolt is a bolt.... But if you've got the energy to wheel hard enough to get into a rollover situation, by golly, you'd better have the energy to drill and bolt in your seatbelts properly...