The early model T-63 and D4-7 axles tips can be cracked or broken and are hard to replace.
Note at the bottom of the picture you will see the tip of a screw driver that points to the milled down axle for the D4-7. The two larger diameter axles on left are for the D4-10 tractors. The smaller diameter axles on the right are for the T-63 and D4-7 tractors.
Edited by sacsr, May 27, 2014 - 05:49 PM.