My '84 345 has 3 lap belts on the couch behind the driver.
On my M/H I have a Dinette behind the passenger seat, and no belts fitted. The overhead storage also has the same sticker that Dadstoy's has.
We will be putting 4 lap belts on the dinette seating and am interested to get comment on a secure way to bolt them to the floor?
I was thinking that a bolt thru the floor close to one of the floor crossmembers with a tab welded to bolted to that would be good...