Torque Tube Coupling
The coupling point is between the Torque tube and the
Transmission.
This applies to both manual and automatic transmissions.
From 1984, when the four-speed automatic transmission was introduced, there
was a change. Whereas on the three-speed auto a male shaft came out o the
trans/ torque converter housing area and connected to the torque tube shaft
via a sliding sleeve, very similar to the sliding sleeve on the manual cars
at the clutch end … on the four-speed it’s a female shaft and no sliding
sleeve. This has the usual clamp around it, and it’s just one hex
bolt.
Again, if the car is driven hard (e.g. fast acceleration),
the bolt in this case will stretch ever so slightly causing less clamping
force, which causes the spline inner and outer to chatter and move. This in
turn will allow the torque tube shaft to move slightly forward and more
importantly, will eventually either damage the spline on the torque tube
shaft and/or crack and break the hollow female shaft coming out of the
transmission. (both manual and auto).
This is expensive and avoidable – I advise you to get
it checked.
Regards, Bruce Buchanan
Buchanan Automotive
Unit 2/2 Paton Pl, Balgowlah NSW, 2093
(02) 9948 2651
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