[AT] Ford 4000; coupla questions

[Lew Best]

Hey guys
 
I know this isn't antique but hope someone can answer a coupla
questions.
 
First; the 3PT lift arms originally had little levers that could be
lifted to allow the ends to be extended a few inches making for easier
implement attachment.  The levers, pins, etc. are still there but the
extension ends have been welded in the "non-extended" position.  Anyone
know a good reason for this?  Been strongly considering trying to grind
the welds down so it will work like it was designed to.  Hate to grind
it loose though just to find I have to weld it back again.
 
Secondly; I need to squeeze the wheels in a bit.  There are tracks (for
lack of better terminology) that look like if you loosen the clamps the
wheel can be rotated to move it down the tracks & squeeze it (or move it
out if it's already squeezed) to the desired position.  Is this how it
works?  With the tire mounted it's gonna be heavy; will it slide when I
try to turn it with the axle locked to stay stationary?  Any tricks I
need t know?
 
Thanks!
 
Lew Best near Waco, TX