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| | | | Joined: Jan 2016 Posts: 246 Shop Shark | | Shop Shark Joined: Jan 2016 Posts: 246 | Is there an updated easy to install synchro 3 or 4 speed tranny that would pretty much fit my 1/2 ton Chevy truck with floor shift and a torque tube driveshaft ?
Or do I have to go to an open driveline first ?
1953 chevy 1/2 ton with 3 speed 318 on floor and 1955 235 engine
| | | | | Joined: Sep 2001 Posts: 29,270 Bubba - Curmudgeon | | Bubba - Curmudgeon Joined: Sep 2001 Posts: 29,270 | Is there an updated easy to install synchro 3 or 4 speed tranny that would pretty much fit my 1/2 ton Chevy truck with floor shift and a torque tube driveshaft ?
Or do I have to go to an open driveline first ? Yes, any 1948-1954 truck 4-speed will be synchronized in up-shifts, and in down-shifts (except maybe from 2nd to 1st). The standard 48-54 3-speeds would be column shift. | | | | | Joined: Jan 2016 Posts: 246 Shop Shark | | Shop Shark Joined: Jan 2016 Posts: 246 | Tim...does your "yes " refer to having having to change my torque tube to an open driveline first .....or .....does your yes refer to having a tranny available in 4 speed as an easy fit ?
I currently have a 318 3 speed that has been moved from the column to the floor by the previous owner.
If I installed a 4 speed from the same era 1948-1954, how is that an improvement ????
1953 chevy 1/2 ton with 3 speed 318 on floor and 1955 235 engine
| | | | | Joined: Sep 2001 Posts: 29,270 Bubba - Curmudgeon | | Bubba - Curmudgeon Joined: Sep 2001 Posts: 29,270 | Sorry, You asked about enclosed driveshafts, and my answer responded to that.
I should have been more specific: Yes, any 31xx series 1948-1954 truck 4-speed will be synchronized in up-shifts, and in down-shifts (except maybe from 2nd to 1st), AND, they should have the torque-tube cover on the rear of the transmission (easily confirmed by looking at the rear of the transmission).
The rear enclosed u-joint cover/housing on the 4-speed is swappable/changeable with an open drive-shaft cover/housing.
I do not know what improvement you are looking for: high end or low end. The high gear in both transmissions (and in the 318 3-speed) is 1:1.
| | | | | Joined: Jan 2016 Posts: 246 Shop Shark | | Shop Shark Joined: Jan 2016 Posts: 246 |
1953 chevy 1/2 ton with 3 speed 318 on floor and 1955 235 engine
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