4L80E Bushing Install press set:
You must be registered for see images attach
There's a good guy 3-D Printing these and a few other ingenious specialty tools for various truck transmissions and axle gear, carrier bearing installs, etc, on eBay.
The colored plastic parts are seated into each of the 4L80E bushings, in the picture.
He designs them to pass through tight spaces or over press through the holes to depth. Well done.
Hammer tough with the new polymer he's upgraded his printer to use. Check him out.
stefanwerner:
https://www.ebay.com/sch/i.html?item=204556507612&rt=nc&_ssn=stefanwerner