Front: 
Height: 3.3" (83.82mm)
Width: 3.3" (83.82mm)
Installed width: 3.46" (87.88mm)
Depth: .8" (20.3mm)


Rear:
Height: 2.86" (72.6mm)
Width: 2.9" (73.66mm)
Installed width: 3.05" (77.5mm)
Depth: .72" (18.28mm)