4 speed in 1955 ?
Not a factory piece . Chrysler didn't have a 4 speed until 1964 (the A-833) with the exceptions of :
- 1962 Chrysler 300 with the radical , optional solid lifter cam , had a Pont-A-Musson gearbox (a French truck trans)
- 1963 Max Wedge Super Stock used a "stop-gap" (e.g. , a substitute until their own 833 could be released) Borg-Warner T-10
Isn't the trans in the Moebius '55 300 the Powerflite 2 speed (a short-lived predecessor to the A-466 / A-488 TorqueFlite) ?
Not sure where you got "4 speed in 1955". The 4-speed I mentioned as backing up the "custom V8" (called the "highboy engine" on my instruction sheet) in the Revell '32 (which portrays a contemporary street rod) appears to be an A-833 based on the shape of the gear housing, the tailshaft housing and the number and spacing of the bolts on the side-cover. There are other details that substantiate this, but the shape of the side-cover is slightly off.
As you correctly state, this would not be an appropriate trans for a period-correct build representing a 1955 vehicle.
The two most common transmissions used behind Hemi engines in 1955 hot-rods would have been: 1) the ubiquitous Ford 3-speed (an adaptor is used to mate it to the block) with or without a closer-ratio gearset from a (Lincoln) Zephyr. The Ford box wasn't strong enough to withstand the torque from the Hemi for long under enthusiastic usage. 2) the LaSalle / Cadillac / Oldsmobile 3-speed, all versions of the same basic trans, stronger than the Ford and available in various tailshaft and rear universal joint configurations by mix-and-matching of parts. Again, an adaptor was used to mate the gearbox to the engine.
A less common alternative was a big Packard 3-speed, again requiring an adaptor and other mods to work in the Ford chassis.
Edited by Ace-Garageguy, 26 January 2013 - 05:36 AM.