1995 Pontiac Transport rear wheel won't work

When you say the rear tires won't move, are they skidding when you try to drive? Have you taken the rear tires off to check if something has rusted in place, broken, or is damaged?

They are locked up my dad tried to rock it he said when it went into drive and went forward they stayed lock up and when he put in reverse it the were still kocked up but it felt like he was being towed up hill backwards

Something with the brakes has locked. It could be rust. You need to remove the tire and check each side. Was the car parked with the parking brake on?

The van was drivable til this happened about a month ago

Nope

A week or a month? Did the belt break first or has the vehicle been sitting for longer? Was the parking brake on?

The belt broke first and didn't get put on til last sunday. No I didn't put parking break on. I drove it til belt broke it happened after I drove into the trailer park I baby sit at was flooded and didn't see how bad it was cause it was at 4am and poor lighting

Hi:
It has to be related to the brakes. Have you pulled the wheels to check?

No we haven't wanted to see what we should do thank you