Yep. Removed all of the tru trak mounting hardware and installed the GSA Mounting kit from Garmin. However, according to a rather popular panel builder that advertises on this website. The bolt patterns for the servos themselves are identical.
The shop that did the work on my airplane was not particularly impressed with the original install. They opted to replace.
Here is the after. My apologies, I do not seem to have any before images.
Hope this helps.