"Jim Wilkins" wrote in message
...
"Ivan Vegvary" wrote in message
...
1948 Pontiac Hydramatic needs a spacer so I can install non-original
seals between the transmission output shaft housing and the drive
line.

Spacer: Outside diameter 2.017" +0, -0.05: Inside diameter 1.500"
+0.05, -0: Width approximately 3/8".

How best to make this on a lathe. Material would be a 3" square of
aluminium about 3/4" thick. Have 3 jaw and 4 jaw chucks available.
...
Any advice, especially lathe procedures would be greatly
appreciated.

Ivan Vegvary

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Do you have a faceplate? If so it's a simple job if you mount
plywood on it, true the face flat and attach your blank with screws
through the waste area to rough it and then finger clamps inside or
outside to finish. ...

-jsw

Fender washers make good DIY finger clamps. Support their distal side
with a flathead screw driven in to the height of the work surface.
They should be safer than bar stock if they contact the tool bit or
your hand.
-jsw