Axles move differently on a job

I adjusted my axles properly, but have now sent my first job. here, with a square of 100 x 100 mm, only 40mm is driven, why is that?

The Difference Between a Driveshaft and Drive Axle Explained for Those with Auto Mechanic Training - Auto Mechanic Training School

Wheel & Axle Mechanical Advantage, Equation & Examples - Video & Lesson Transcript

CV Axles - Central Florida Transmission Repair

Transfer case - Wikipedia

How Differentials Work: Independent Rear Axle, Article

Car Axle Repair: Symptoms, Causes, Cost & More

How do wheels work? Science of wheels and axles

Thru Axle - The Ultimate Guide to Thru Axles in 2021 - Hexlox - Hexlox - Anti Theft for Saddles, Wheels and More.

Wheel & Axle, Definition, Examples & Mechanical Advantage - Video & Lesson Transcript

How to Lubricate a Driveshaft

How to spec the right axle configuration

1948 International Harvester Coal Truck Advertisement IH Appliances

US News and World Report 1/25/52 , Original magazine advertisement: Source publication & date of issue stated when known; occasional closed edge tears

Dodge Stake Truck different trucking job ad 1952

Rigid axles from BPW: Taking the heaviest loads with ease