1977 chevy chalet full time 4x4

[k5swy]

Any info on converting the fulltime 4x4 to part time on the np203 t-case? Just wanting to get some better gas mileage and less wear on the pavement. Just ordered the mile marker conversion kit from summit and need some feedback before any install.

[cadillac_al]

You won't save hardly any gas. My 76 rolls down the interstate at 70-80 with the 203 and nothing is worn out yet at 185k miles. It always sounds like unnecessary work to me.