: These models use a rear-mounted transaxle connected to the engine by a torque tube to achieve better weight distribution.
Unlike a standard open driveshaft that uses universal joints to handle movement, a torque tube system houses the driveshaft inside a hollow steel tube. tube tranny
: These front-engine Porsches utilized a transaxle and torque tube for near-perfect 50/50 weight balance. : These models use a rear-mounted transaxle connected
: When you accelerate, the rear axle tries to rotate in the opposite direction of the wheels. The torque tube resists this "twisting" force, transferring it directly to the vehicle's chassis through the transmission mounts. : When you accelerate, the rear axle tries
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This setup is iconic in several specific automotive circles:
: Because the tube is rigid, it also helps locate the rear axle, often allowing for simpler rear suspension setups like those found in older Buicks or modern performance cars. Notable Vehicle Examples