Investigating the rear axle issue & a potential fix for the LEGO Technic 42129 Mercedes-Benz Zetros

As I mentioned in my previous video, the LEGO Technic 42129 4x4 Mercedes-Benz Zetros Trial Truck seems to have a problem with its rear axle. Under constant heavy load pushing the truck beyond its limits, a 5L beam that holds the gear driving the rear differential gets pushed out a little bit, and as a result the gears start to crack and might get damaged on a longer term. In this video I show you the problem in details, investigate the causes and test a potential fix. If you’d like to see more LEGO® RC fun then please follow me on Instagram, on my Facebook page or on my blog: #lego #legotechnic #racingbrick