D4 hydraulic cylinder question

[B4D2]

I have a D4-7U with a 4A blade. I removed the hydraulic cylinders the other day for rebuild. When I removed the retainer from the front mount, I noticed the bushing completely missing. As a result, the pin that the ram rests on has excessive wear. I plan on getting a replacement bushing (3F9363) but I would like to replace the pin. My parts book shows a part number 3F9897 for the pin that the ram mounts to, but shows no other attachment pieces. Does this pin screw onto the crank assembly? Is it welded on? Supposing I can find one, I would like to replace the worn pin so I don't waste a good bushing. I just need to know if it is a weld on or bolt on pin.

[ROME/KG]

They are welded on. They have smaller boss that fits into the brace then is welded around the outer edge. I air arced the old ones off and had my machine shop make new ones out of 4140 i think, it was a good wearing steel.

[B4D2]

Thanks R/KG. This helps a lot. I'd rather know ahead of time rather than cutting on the crank and finding out I damaged something. I appreciate the help.