97 80, 202k miles. Just had the entire exhaust system from manifolds back replaced last weekend. The shop i took it to (never had work done there, but they were recommended and had decent reviews) does a lot of exhaust work. Anyway, they broke the rear manifolds front stud at the y pipe connector. From what i could tell, it broke inside the threads, super. They said, its ok we double gasketed it and put some muffler cement to prevent leaks, well i made it 15 miles before it leaked. Its not obnoxious but i definitely notice it and the cruiser feels weak accelerating as a result. Because I like to waste money I ordered up some dorman manifolds for 95-97 80 series on rock auto, along with new OEM studs and nuts. Manifolds came with y pipe hardware and gaskets. My question is: is this is a simple project? I pulled the manifold heat shields off and hit the studs and nuts with penetrant yesterday. I realize worst case scenario, a stud breaks in the head. Best technique for getting the rear manifold studs out? Go from underneath? Would you guys take it to a shop to have them sort it out? There seems to not be a lot of write-ups about this (likely because its a simple job). Thanks.