top loader & cab mount question

[1962k20]

I have a 62 k 20 how do I remove the shifter? Its a top loader. The tranny looks to have a pin-(s) holding the shifter in place (Its worn out and has a lot of slop). Im getting ready to put a new cab on the truck soon but need to remove the shifter. Also Im rebuilding the cabmounts there the same as a c 10 not the c-k 20-30 type, why I don't know? But it works out good ,I have all new rubber mounts. I need to know the hole diameter. The originals rotted away on the top . Thanks