b4 ft pistons

[Timee80]

ive nearly finished building my new b4 ft. In the instructions it tells you to use the number 2 pistons for the front and then number 1 pistons for the rear. It clearly shows you should have four number 2's and two number 1's included in the kit on one white sprue. Ive only got a smaller white sprue in my kit which has four number 1 pistons on it, and thats it.
Is this only what is icluded nowadays or have i been unlucky and got shafted?