interior help
Call your local chevy dealer. The one on the drivers side is about 17.00 dollars and the passanger side is only 6.00. I know that this sounds strange because they look alike but that's the cost of them. and by the way the seatbelt WILL go through these you just have to turn it just right.
Alan
The buckle will go through, you just gotta play with the angle that the buckle goes through. 
