To mate an NP205 to a TH350 or TH700-R4 automatic transmission, you will need an adapter (A) and drive sleeve (B). These are the same for either transmission, but are different for manual transmissions, which most 205s came behind. Furthermore, 205s mated to manual transmissions came with coarse-spline input shafts, which don't match the fine-spline output shaft of an automatic transmission. Either the 'case or the tranny must be modified. The adapter for the NP203 is also shown (C).