My 1975 Triumph 2500 automatic (Borg Warner type 35, three speed, no lock up) is misbehaving itself. The car shudders severely from about 40 mph onwards, you can feel the whole car shimmering. To try to solve this I did the following:
- changed driveshafts for known good examples
- changed propshaft
- changed wheels & tyres (from a car without vibration)
- changed flexplate
- changed BW35 incl torque converter
The engine rubber mountings and rear gearbox rubber mounting are as new, no cracks or old-age signs.
After the gearbox change, it has become worse. It now even shudders when idling, more when increasing revs. The engine otherwise runs smooth on all 6 cylinders.
I am at a loss, don't know where to look now. It cannot be the drive line because of the shudder when stationary. Could it be that the Torque Convertor is playing up? The replacement is coming from a car which has been standing for several years.
Any tips and hints gratefully received.
Dion.