DIY Car Jack, Car lift

Hi guys, this is my DIY car jack. I finish it a year ago and it works like a charm.
Website to buy plans of other projects: https://57design.ca/ OR
Etsy: https://www.etsy.com/ca/shop/VinyB57d...
Since I have a lot of questions about the reducer, here is one wrom gear reducer that is SIMILAR of what I used:
https://amzn.to/2LOexAI

Trust Bearing Used:
https://www.mcmaster.com/60715K13/

Bearing 3/4 I Used to locate the screw:
https://amzn.to/3927kpx

Bearing 1/2 I used for the shaft between the 2 reducers:
https://amzn.to/39PnXnI

3D PDF:
https://www.dropbox.com/scl/fo/a5y867...

PDF INSTRUCTIONS: You need to download adobe acrobat reader. DO NOT use a browser to open the pdf. This pdf is a 3d drawing so it requires Adobe acrobat reader. Once you open the pdf, you may have a white page, just click on the page and it will render the image. You might see a yellow bar on top that says you have to enable 3d rendering just enable it and you will be good to go.

Thanks to Homero Gonzalez for the instructions

For gear box info: pause at 5:26 this video, you'll see the name plate!