Provided there is a factory installed clutch cable tube in the tunnel, it's a pretty straight-forward, exchange. Just unbolt and remove the auto-stick stuff and replace it with manual stuff. I may miss a few things, but here are the main changes.
Remove the engine and tranny. Replace the engine's oil pump with a regular pump (the auto-stick uses a special pump . . . pumps oil in the engine and tranny fluid on the outside). Remove the flex plate and replace it with a flywheel (change your main oil seal and set your end play while you're there).
Remove the vacuum canister from under the left rear fender and the transmission fluid reservior from under the right rear fender. Remove the vacuum control valve from the rear firewall. Remove the shifter and the shift rod. Remove the pedals.
Put it back together with manual transmission pedals, shifter, shift rod, a manual tranny, and your "manualized" engine.
SAVE ALL THE AUTOSTICK STUFF!!! There aren't too many of them around anymore and someone will need something you have to keep theirs on the road.
IF you don't have a factory installed clutch cable tube and the autostick is working . . . don't mess with it. :wink: To install a tube, you have to cut the tunnel open in three places, install and tack in the tube, and weld the tunnel back up. It's not an impossible job, but you have to know what you're doing and be a pretty good metal fabricator or you might end up with a real hack job.
From what I've been told, prior to 1972 it's kind'a hit and miss if you have a tube from the factory. From 1972 on they all had tubes. Originally the factory had one assembly line dedicated to autostick. No chassis off this line ever had a clutch tube installed. But sometimes the autostick chassis line would fall behind production and they would pull manual chassis to catch it up. In 72, they droped the dedicated autostick chassis line and put tubes in all of them. I don't know if that's really the way it was, but it's what I've been told and from all of the autosticks and former autosticks I've seen over the years, it seems right. Ret.Bugtech can probably shed some light on this and straigten me out if I'm way off . . .