FH020AA / SH847 mounting dimensions in inches.
Here's the dimensions that you need to make your mounts
or modify your original mounting. The drawing says FH012AA
but it is the same dimensions for FH020AA. Scroll down for SH847 drawing.

Purchasing page click here.


SH847 drawing

Here's a PDF of the SH847 so you can make a template.

Just make sure it's the right size after printing before you cut it out.
PDF files never seem to open to the actual size, so measure to be safe !!!