I just got replacement belts from OPGI in the mail, $39 for the set and they look great. Trying to get the old belts unbolted---:confused::confused::confused: The bolts just spin, don't loosen. Where underneath are they connected so I can hold the bottom steady? Man, this is frustrating... Thanks

Found the bolts and huge washers under the floor pan. Hit them all with PB and I'll have my wife hold them from inside the car tomorrow while I get underneath and loosen them up. :disco:

Are those factory? My old 65 SS didn`t have any and I know of a couple other 65`s that didn`t come with any.

I thought they were an option? The seatbelts I found under the back seat were certainly hidden for the 8 years I've had the car. But in any case, where they're bolted up underneath it's almost impossible to get to two of them: they're right up against the frame... So who knows- but I'm using the holes to bolt the new ones in so my kids can roll with me too!:D