New part arrived
Not exactly as the old one and mounting holes didn’t line up.
I already knew this before ordering part thanks to another thread.
Just made a template and was able to reuse one of the original holes.
Expanded one other and Drilled two new holes.
Sealed the other holes with mil spec 3145 sealant
Used stainless mounting hardware and used new grounding washers. Was much easier to mount from the back
Fit just fine.
I used too much red shrink sleeve.
Had to cut a few zip ties and when wires were hooked up, secured the wires again.
Still about 0.5 to 1.0 hz off but at least it’s in the ballpark.
Needle still moves occasionally but not far.
Fluke meter confirms info.