Just as Dana 60 axles have found their way into small and mid-size 4x4s, heavier-duty transfer cases are also appearing in these vehicles in greater numbers. Heavy-duty, however, is a relative term.

Last month we got our Phoenix Project's transfer case doubled, only to tear it down anew to install Inchworm Gear's Lefty adapter. "Lefty" is an adapter that fits Toyota's '79-'95 transfer case used ...