shock clearances

[Kurt in NJ]

I bought this shock at Hershey, it was real gooey, in a “junk” box at a early Ford mechanical parts rebuilders booth, for 2$ I took a chance.
when I got it home and put it in the vice it broke free, moved easily with no shaft play and had some resistance at each end of travel that changes with valve adjustment but it wouldn’t pick up oil and bleed out.
With the recent posting about shocks i got curious what it looks like inside.
Came apart easily.
Some of the machining seem a little rough, almost no wear, just polishing of the high spots off of the machining, the shaft fit is tight enough that the wingshaft tips are not touching housing, the running clearances are less than .0015, one layer of aluminum foil underneath the cover making movement firm so i figured that clearance is in the .0015 range too.
This shock will have a proper 60/40 action, and easily pass the weighted movement test as shown in the service bulletins using hydraulic oil, even using automatic transmission fluid, closing the needle valve will almost lock it up in the rebound direction, the internal check valves will allow movement in the compression direction
There were some chunks of a white material floating and stuck in the check valves and the air vent pins are clogged,