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Transfer Case Swap

Discussion in 'Chevy Trucks' started by Dan S., Jul 29, 2002.

  1. Dan S.

    Dan S. Member
    Messages: 31

    Can I replace the NP203 with an NP205 in my 76 K-20 It has a 350 engine and TH350 auto transmission, if so what will I need in addition to the case and shifter. The truck has manual hubs I suspect it has been modified to part time, it makes a knocking noise when in low range I am afraid the case needs replaced.
    Thanks for your help:)
  2. russ130

    russ130 Senior Member
    Messages: 204

    Make sure the 205 is for a 350 and not a 400. The 400's splines are different and the bolt pattern is too.
  3. staley52

    staley52 Member
    from Iowa
    Messages: 98

    best way to do this swap is get a doner truck with the desired t case and swap trans, tcase and drive shafts

    cheaper and just as good have the 203 rebuilt unless you are into some realy serious 4 wheelin a rebuilt 203 is just fine