706 pto lever

the metal block at the bottom of the pto control lever that connects to shaft that goes into the pto housing was loose ( free turning on shaft )
unscrewed enough that the pto would turn in the full off possition.
i replaced the seal and o-ring ( external leaking ... not really related to this problem, just goes to show you what you find when ya start lookin)

if i screw the shaft all the way into the block it runs into the shaft going thru the block(binding)

if i back it off a little the pto lever is stiff disengaging the pto. i backed it off a couple turns and locktited it. still not as free as it was .... but it was falling apart before .....

what is the proper adjustment for the block/shaft?
cant find it in my book .....

lever assy back together like it was before
the stiffness is mainly in the over center action / going into - out of locked in
just wear in the bushings?

don't think the stem is bent, it moves freely up until the overcenter pos

don't have the test stuff
got a ruff estimate measure of end of threads on the stem to the block?

thank tris