93 - 99 6.5TD's (up 2002 in 3500HD) will all work on 6.2's. The 6.2's never came from the factory with turbos, but the Banks kit was dealed installed from '89 - '92. The '93 - '94 GM-3 turbo will work as is because it has a spring actuated wastegate controller set at around 6psi. The later ones has a vacuum actuated controller and needs to be replaced with a spring loaded controller (available from Kennedy Diesel, SS Diesel Supply and others for around $100) Those controllers will require a boost gauge because you have to set boost level, because they are adjustable. The later turbos like the GM-8 flow a little better and make a little more power. If you keep the boost at 10 psi or less, water temp below 230, and the EGT's below 1100 degrees, they'll live long heathy lives.
