High pitch intermitinent whrr from rear end

[Commissioner]

I have a 1996 Club Car 48v series.
I am getting at high speed a whrrr coming from the rear axle, or the motor, when I go slow it doesn't happen. it doesn't do it all the time.

[gaminde]

Two things come to mind one its the controller pulsing to the motor that sounds like a whistle or buzzing noise or the bushing that goes between the motor and the rear end, does it get louder when coasting? if so bushing if its louder when accelerating DC buzz.

[UberDan]

mine does that all the time, I just figured it was the gears.

[Commissioner]

Since i posted, my Motor came to a GRINDING halt! now I'm looking for another motor

[garyd]

I have the same noise in my 2008 precedent and call it gear whine. how hard is replacing this bushing?