Fixing Tomica world 7524

Hi everyone this is just a quick how to on fixing Tomica World 7524 automatic construction Site set in case your rollers are giving you trouble with the movement of the construction vehicles.

So let's open it up. Unscrew all screws 

Be careful to lift up the housing carefully as they're 3 springs pushing up on it. They won't shoot out but you don't want them falling off as you take the top housing off

This is a close up of the 3 rollers and their gears

At this point just check for cracked gears. As you can see, I have several
    
So I removed the gear from the metal rod with my hands; Since they're cracked, it's easier to do so. Now what you want to replace them are 10T 2A plastic gears. Here's an Amazon link:
https://www.amazon.com/gp/aw/d/B07DH9JT8...asin_title