Currently have 2 single seats up front. Due to new addition on the way, will now need to replace one of the seats with a bench seat so 3 can ride.
As i understand, a double will replace a single using the existing seat runners, you then weld a bar accross the van as support.
What about seat belts though? the bench seats i have seen advertised do not have a lap belt or seatbelt fixing that the existing seat belt can click in to. How is this problem resolved? Would be great/appreciated if anyone has any pictures/links to pictures they could share.
Appologies in advance if it's a dopey question.

Thanks,
Danny