A great way to tune hi-performance cars is to put them on a dynamometer.
The Hot Wheels Tune-Up Tower treadmill is the all-wheel drive type. Unfortunately, the treadmill often malfunctions.
The number one problem with the treadmill is slippery grime on the rubber roller of the drive shaft.
The number two problem with the treadmill is a missing torsion spring to hold the roller in place that drives the treadmill.
Here’s my YouTube video on how to disassemble, clean and repair the treadmill on a Tune-Up Tower.
So there you have it. The 1970 Hot Wheels Tune-Up Tower treadmill. Getting it to work is another step in making Hot Wheels still fast. Still fun.