b7100 front axle pin o-ring replacement

I am reassembling after an engine rebuild and noticed that two o-rings are missing from the front axle pivot pin. There are supposed to be 4 o-rings; a #7 and #22 on either side of the two bushings. Both of the #22 o-rings were missing. In trying to install them, the one that goes to the rear (i.e. closer to the rear of the tractor) of the rear bushing is not a problem but the one that is at the front of the front bushing has me puzzled. The Kubota front axle diagram doesn't include the frame that the axle is pinned to so I'm not positive which side of the front frame this front o-ring goes. But in order for it to keep dirt out of the bushing, I would think it should go immediately against the bushing. However, if this is where it goes, I can't see a way of installing it with the frame in the way.

I have the kubota front axle diagram that I refer to above but can't figure out how to include it.

Not sure if my description is good enough for anyone to follow my question but any guidance would be appreciated.

Thank You

Thanks for the reply.

I understand. I was stuck on thinking the #22 o-ring was also outside the bushing.