Trucks, Jeeps


Mopar taxis, 1935-2003

The reliable 3.5 V6

1997 Plymouth Pronto
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New Venture Gear / Magna Driveline T355 Five-Speed Manual Transaxle

Used in the Jeep Compass, Jeep Patriot, and Dodge Caliber, the T355 was created by New Venture Gear, which Daimler sold to Magna in 2003 and 2004. By the time the Patriot, Compass, and Caliber showed up, the T355 was officially a product of Magna Driveline, built in the New Venture (née New Process) factory in Syracuse.

T355 manual transmission

The five-speed transmission was cable-operated, with a three-plane shifter, and was synchronized in all forward ratios. One source wrote that the cost to the factory was originally $700, but Magna demanded $1,700 for a final run in 2012 due to the cost of keeping the plant open to build that one unit. The Syracuse location would then be closed in favor plants in Mexico and Munice.

 T355T350/T350HD
1st3.773.54 or 3.50
2nd2.162.13 or 1.95
3rd1.411.36
4th1.0261.03 or 0.97
5th0.720.72, 0.83, or 0.81

Reverse was set at 3.417:1. The final drive ratio as installed in the 2012 Jeep Patriot was 4.12, with an overall top gear ratio of 2.97:1.

T355 transmission

The T355 was derived from the T350 and T350HD used in the Neon, and praised by many for its smooth operation, low cost, and durability. Like the T350, it had a single spider gear set and open differential. However, the case and transmission mounts are different enough that it is not interchangeable; and the first gear is lower. Unlike the Neon, it uses a hydraulic throwout bearing, which is combined with the slave cylinder.


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Mopar taxis, 1935-2003 The reliable 3.5 V6 1997 Plymouth Pronto