Offering a new old stock GM transfer case idler shaft cover gasket, part #3975711, Group 4.515. Measures 2 21/32" across. Double check, ask questions, and try to match to see if this will work for you. Supposed to fit: CHEVROLET & GMC TRUCK
1969 - 1972 K10, K20 series, Blazer, Jimmy with Turbo 350 (Type 205 transfer case) - part time
1973 - 1978 all K10, K20, K30, Blazer, Jimmy
1979 - 1980 all K10, K20, K30 pickup, Blazer, Jimmy - Type 205 transfer case
1981 - 1986 K30 with Type 205 transfer case - part time
1987 - 1991 V3500 - Type 205 transfer case