55.2-59 HELP! need to find 1956 rear end thrust washers

[Fults1971]

Can anyone point me in a place to find the side gear thrust washers and the small spider gear thrush washers for 55T rear. In the process of rebuilding the rear end in my 1956 truck, and the damn thing didnt have any thrust washers. Yukon gears says they dont sell them for 55-64 trucks only the passenger car. I verified the 55p washers do not fit. I have looked all over google, and nothing. I have looked on craigslist for someone selling a rear end, so i can snag some, but no luck!