Does anyone know how difficult it is to replace the exhaust manifold gasket on a 6.5L turbo deisle H1 hummer?

pain in the butt, take it to a pro or spend at least a weekend trying yourself|||Yes I do know.|||if it is a diesel motor then you need to take that ride to the dealer and get a guarantee on the repair --- it is not a shade tree job ... you could go to a muffler shop and it is possible that you can get a cheaper price ,,,,,,,, but ,,,,, we know you get the quality of work that you pay for .........