Fits the 4 cylinder delco remy distributor with vacuum advance unit fitted,and screw down cap,fits distributor number 1110268,1110292,1110323,1110426,1110435,1110458,1110492,1110494,1110496,1110531,1110543,0001701,used on Chevrolet cars jeep cars,Pontiac cars around 1962 age,please look at instructions in the photos,it shows the parts that you need to replace in the kit,reminder delco remy,4 cylinder only,with vacuum advance unit fitted,and screw down cap,only,thanks for looking.NOTE DO NOT HAVE THE WIRES INSIDE THE DISTRIBUTOR TOO TIGHT AS THE BOTTOM PLATE MOVES SLIGHTLY AS THE ENGINE PICKS UP..