Low vac on the transmission modulator may do that. I'd also check the transmission mount and the shift control cable.

Worn band will cause rough shifts sometimes as the servos can be out of synch if one is late.

I'd still check the differential for excess play.

Peter

__________________
1972 220D ?? miles
1988 300E 200,012
1987 300D Turbo killed 9/25/07, 275,000 miles
1985 Volvo 740 GLE Turobodiesel 218,000
1972 280 SE 4.5 165, 000 - It runs!