big83chevy4x4 said:4L60E and a np233 (electric shift np231)

74 was an oddball year. You could have a Turbo 350 with an NP203, or a NP465 with an NP203. If I remember right, that was the only year that GM offered the manual trans with a full time t-case.FreedomIsntFree said:Ok Kreskin! What came in my 1974 K5 1/2 ton with a 350? I don't know how to tell t-cases. Is it a 203, 205 or 208?![]()
