> Trying to replace the rear cushion and may contact Jonce, but looking for the foam to possibly do myself.  Wondering if anyone has any suggestions or a
> spare to sell? Thought about buying a baby mattress and just using that. Ideas?

Michael,

Google "auto foam cushion" or the like -- there are a lot of options. We replaced the pad and seat foam a couple years ago (can't remember from whom) and it's worked great. Most should ba able to cut to size and some can cut to a pattern.

john