The Jetstar 88 used the smaller 330 V8 and Jetaway (Super Turbine 300) two-speed automatic transmission in place of the 394-cubic-inch V8 and Roto Hydramatic found in other Oldsmobiles, and 9.5-inch (241.3 mm) drum brakes which were less effective than the 11 inches drums found on other full-sized Olds models.