Sorry to be the bearer of bad news...but maybe yours just needs to be "lubed" or the felt pushed back.
Best of luck and I hope you don't end up having to replace the whole assembly.
Sold: 1987 MB 300SDL, 320k miles, Astral Silver, Blue Leather, all books and records from day one.
Totalled: 1998 VW Jetta TDI, 488k miles, Classic Green/Gray Leather, loaded, E-Codes, "Slightly" modded, "Slightly" faster than stock, arrived 11/07/1997.
MBCA Member, Chicago Region