QU50162 Special Small Extra Deep Cup NP205 Case Access Soft Plug for the shift fork pin and interlock holes in early production NP205 cases. Genuine NPG Plug is approximately 0.385" in diameter. Sold individually, but Requires 4 per case. (Included in application specific QU50117 Small Parts Kit and Torque King® Master Overhaul Kits.)
Mid to late production NP205 transfer cases were made with larger case access holes. These later cases use QU50224 Plug.
If your case access holes are gouged, put a little sealant around the outside diameter of the case plug before installation.