[b454rat]

91 was the only year that GM put VSS on a 205. The 4l80 came out that year which is a fully electronic tranny. It won't shift out of first gear inless the VSS is hooked up, or using a manual v/b. They are only in the old body style trucks, 81-up style, 1 tons only. Usually crew cabs, but cab/chassis got it as well.