Joined: Nov 2005
Posts: 4,035
Likes: 2,116
From: NW Ohio
Bikes: 1984 Miyata 310, 1986 Schwinn Sierra, 1987 Ross Mt. Hood, 1988 Schwinn LeTour, 1988 Trek 400T, 1981 Fuji S12-1977 Univega Grand Rally, S LTD, 1973 Sears Free Spirit 531, 197? FW Evans
I have used an aluminum can shim with no ill effects. If you put the shim in part way first, then put the stem inside the shim, then you can slide them together the rest of the way in.