I just put a tiny bit of locktite on the shaft, run it sideways back and forth enough to get some under the zinc gear, and restore the shaft and wheels to normal position. Wipe up the extra, wait two minutes, job done.

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!