Replacing Spindle on Zero Turn Mower. DIY.

Here is a link to a spindle, blades and drive belt for a cub cadet zero turn mower RZT 50" on amazon for those looking for a replacement.
Spindle: amzn.to/3GLbu4n
Blades: amzn.to/3m7QdZ7
Drive belt: amzn.to/3NP9BGh