In 1986, Gaetti batted .287 with 34 home runs and 108 runs batted in. Gaetti won four consecutive Gold Glove Awards for fielding excellence from 1986 through 1989. Gaetti helped propel the Twins to the post-season and their first World Series championship, hitting .257 with 31 home runs and 109 RBI. He also hit himself into the record books, with home runs in his first two career postseason plate appearances in the American League Championship Series to help the Twins upset the Detroit Tigers.