Looking for parts

[speedbear]

I'm not sure what they are called, but on the inside of the track assembly, they are 3/4" bolts that go into hardened "T" shaped flanged spacer. The flange is 1 3/4" dia. It looks like there are several of these assemblies. It appears these spacers are in a "shear" application. Two of these 3/4" bolts & spacers fell out & I need to replace. I can't find anything about them in the service manual. I can get the bolts, but need the spacers. Butch From Pgh

[speedbear]

I guess I should mention this goes on a 350 hi-lift, diesel.