[PetChemMan]

Despite the odd gear ratios and somewhat slushy shifts, the Slim Jim can hold up pretty well to abuse, as many Starfire and 98 owners can confirm. Incidently, in some literature the factory called them "4S" transmissions , which many folk took to mean 4 speed. Actually, they were 3 speed transmissions with a small fluid coupling that gave some initial torque multiplication off the line. I agree with alrandmae above that the Slim Jim helps give those cars a unique personality, and I wouldn't trade mine away for any other transmission. On the other hand, the 4 speed Hydra-matic in my '55 Olds was my favorite transmission of all.