I changed to the Muggy b/c I can get more reduction in the driveline of the LST. Also the Muggy is easy to work on, but the LST is even easier to work on with the tdracing mount. Much easier to switch pinions with the tdracing mount than on the Muggy.
With the locked center I think linc is referring to the center gearbox which doesn't have a diff. The Muggy has a center diff. And FOC = forward only conversion.