Certain parts etch their names into the iron ledger of strength and endurance in the vast theatre of automotive technology. One of these mainstays is the 47RE Transmission, a Chrysler-built mechanical heart that is still respected in towing fields, garages and highways. It is much more than just a straightforward gearbox; it is a complex fusion of robustness, longevity, and engineering know-how--a late 20th-century relic that has lasting importance today.