(ET) mowing deck

[Barry Woods <barry woods wright edu>]

Has anyone replaced the bar with the wooden roller, on the front-mounted 
Elec-Trak  mowing deck, with two wheels?  The wooden rollers transmit a lot 
of vibration (and noise) to the deck. It would seem this vibration and 
jolting would be hard on the motors and may increase the likelihood of the 
magnets breaking loose.  It would seem that rubber wheels mounted at the 
two rear corners of the deck would allow for better steering, be quieter 
and transmit less vibration to the deck and motors.  Is there a reason that 
GE used these rollers in place of wheels?

Barry