Paul from SWISCO responded:
May 25, 2010
The actual hole spacing of the 84-066 screen door roller is a little different from your measurements. Double check your measurements to see if they do match. There is a distance of 2-3/32" between the two mounting holes. The adjustment hole is not exactly centered. There is distance of 1-7/32" from the adjustment hole to one side of the roller and a distance of 1-5/16" to the other side of the roller (see attached picture). Also, take a look at a similar roller Swisco part 84-074. Alternate measurements for 84-066
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