White LT 185 elect clutch

I have a 1990 White LT 185. The PTO belt shredded and I'm in the process of replacing it. I went ahead and replaced the drive belt. In putting the Warner elec clutch back on, I'm trying to find out out it attaches. The elect plug in spins with the clutch and motor and would, thus, rip the electrics out of it. How does the clutch portion "lock in" so the magnet remains stationary? It has two "ears" as if it would bolt to something, but there is nothing there. help? and Thanks.

There will be a bracket under the mower for the clutch to slot into if the the mower originally had an electric PTO.
On some it also doubles as a belt keeper for the tranny belt