I have a general question on the K-3-a Caterpillar Bulldozer! Why does some of them have a hook and some does not?
First thought was that it depends on if the Caterpillar has a blade or not (only released in the King-Size low loader set or the G-3 Farming Gift set), but that does not work.
I just noticed that as I checked my recently received Bulldozer. It has a different exhaust (the smaller one) style, too!
Maybe it's a very early run, because I have one with metal rollers and hook, too.
I took some pictures for you!
Earlier variation with metal rollers!

Without hook



Thats the regular exhaust style on my models:

And thats the one from my latest find:

Greetings,
Linus