My freshly rebuilt TH350 sprung a leak so I took it back to the transmission shop to have them fix it(warranties are really nice sometimes). While I was showing them the leak, I noticed one of the rear rubber body mounts is split in 2 pieces and practically falling off. I haven't had a chance to look real close because it's up on a rack right now, so my question is..... Do I need access from the topside of the bed to replace them? The dilemna here is that I've got a full slide in fiberglass camper thats a big PITA to remove. I've read through some threads that address body mount installation, but can't seem to find an answer for this specific question.