On Tue, 1 Jan 2019 14:39:19 -0600, dpb wrote:

On 1/1/2019 1:50 PM, -MIKE- wrote:
...

So you could probably take off the back rail with no issues.* I would
just make sure the back rail isn't acting as a structural rail for the
saw table/assembly in any way before removing it.

Not that familiar with the Model 66, eh? VBG

Them there's 100-lb solid cast iron extensions, there, good buddy! The
rear rail serves only as locking feature for the original fence.

Thee Unisaw isn't much different, except that the back rail *is* there
for structure so the bolts into the top (and the iron) are in sheer,
rather than tension.