Ok so I bought a 1983 mobile home. Had to replace the flooring in the back bedroom and master bedroom due to water damage. The old garden tub that was in the master bathroom was broken so I had to replace it. Found a smoking deal on an Encore V Jet Tub. What do I need to do to install the drain? I did not remove the old garden tub or the flooring previous owner did that before I bought the Mobile Home

Your jet tub will install the same as a regular tub. You must locate the capped off drain line and see if it still has a trap capped off. This will be found under the floor. Let me know what you find. Good luck, Tom