Re: 1990 force outboard
Welcome to iboats.
No other brand that I know of.
Many people have said they were going to put a (yamaha/merc/mariner) unit on, that it would fit, but no one has ever posted back here with the results.
Everything I can think of has either a different driveshaft spline or a different shift rod connection.
Then again, you didn't mention what hp motor you have.
Force lower units are readily available, as many of them are being parted out on ebay and craigslist.
