What manual transmission is in a 1989 Jeep Wrangler 4-cylinder?
The 1989 Jeep Wrangler with a 4-cylinder engine typically came with a BorgWarner T-5 5-speed manual transmission. However, there's a small chance it could have a different transmission depending on the specific options and the market it was sold in, but the T-5 is by far the most common.