Old Cars Weekly

Q&A

Q. I have a 1955 Buick Special with a Dynaflow transmission. I have had it rebuilt and reinstalled twice and I’m still having problems with it. I have decided to convert the car to a GM Turbo Hydra-Matic 350 transmission. Does anyone know the best rear end to use?

— Brian Peterson, Emmons, Minn.

Whatever rear axle you use, you’ll be faced with some chassis changes. Your Buick has coil springs in the rear, with a transverse radius rod limiting side-to-side sway. Fore-aft stability is provided by

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