(ET) Mower cutting height

[Bill Alburty <willaim kc rr com>]

The GE engineers were not so clever when they designed the mower deck 
height adjustment on the E-12. Re-arranging the 1/2 inch nylon spacers 
on the front casters is easy with the deck flipped up, but adjusting the 
rear roller brackets requires wrenches and is not so quick. I very 
seldom need to be changing the cutting height so I can live with it. But 
my problem is  I can't  get it high enough. My maximum cutting height is 
about 2 1/2 inches. I can't believe it was designed to have that 
limitation, especially for the rural user. I'm trying to grow tall 
fescue which is supposed to be cut at 4 inches. Do I have to get larger 
diameter casters and weld extensions on the roller brackets? Or make 1 
1/2 inch shims for the motor mounts? Thats all I know to do. Are those 
shims available somewhere?
Any suggestions?

Thanks for any help,
Bill Alburty E-12 Kansas