[Richard]

Myself, and others think adapter failures are due to the side mount on the NP205. Will not be reusing it in my 650hp build with low gears and big tires. GM stopped using this mount after 72 I believe. The mount does not allow the transfercase to move the same as the engine and transmission, causing undue stress on the fixed trans/t-case adapter. A divorced t-case can use the mount with no problem. Simply using poly bushings on the engine and a rubber mount on the trans mount can cause problems as well. My two cents.