Today my 9 year old son helped me clean up the steering bolster.
Common problems with the steering bolster is wobbly steering and leaking oil.
Wobbly steering can be caused by a worn worm gear, or worn sector gear. I suppose worn bushings could cause this too but I have not seen instances of this.
Leaking oil is caused by a bad upper oil seal. Some people delay replacing the seal by switching to a thicker oil (90W to 140W) or even a thin grease (corn head grease).
worm gear: worm gear felt seal worm gear seal 364470R91, 359449R91 worm gear gasket cover worm gear bearing top: upper bushing 45172DR oil seal ? bottom: does the M have no felt washer retainer? felt seal 49663D thrust bearing ? lower bushing 49661DAR