1978 Manual iron transmission, number 13 4 gears, 4 speeds L 1 2 3 R GMC and Chevrolet Bahbehani double Fender van or Armored van or Suburban Specifically for the double iron gear and standing stick for Blazer K5 And Sierra K15 / K25 / K35 And Chevrolet K10 / K20 / K30 73-87 Seventies and Eighties For sale by offer Contact via private message