Auto Trans Case Vent For 1979-1981, 1984, 1986 GMC G2500 1980 N544KS
1986 GMC G2500 THM350C Automatic 3 Spd. 1984 GMC G2500 THM350C Automatic. 1979-1981 GMC G2500 THM350 Automatic. Notes: Automatic Transmission Case Vent. Product Information. Vehicle Transmission. ALL PRODUCTS BUILT TO STRICT QUALITY STANDARDS.