A833 leaks
No, you overshifted it. You'll have to gently nudge those struts back home, into the notches, one atta time. Make sure the energizer springs don't slip between the struts and the blocker rings. They need stay under the struts.
It will be Ok .
As for the clusterpin ; and you are absolutely sure it's leaking;
1) If you have a cast iron case,
then the clusterpin is supposed to be a pretty tight press-fit into that front hole. There is no way that should ever leak.
The thing is that, in gears one thru three, the power from the crank goes down from the input into the cluster drive, forcing them apart. IMO, and I'm guessing, that any locking agent you put on there from the outside, will not be effective, and to put it on from the inside is barely possible, and again, IMO, will get banged out before long.
Therefore, I suggest a complete teardown, for inspection to see which or both, is in need of repair or replacement.
2) If you have an alloy case,
and because I don't see a receiver ledge for an expansion plug, it cannot be a Mopar FMJ case, unless it's a rebuilt FMJ, which was converted to non floating clusterpin, and they failed to dimension it properly. What I did to mine was have a machineshop fabricate a bushing, lock it in there, then ream the bushing to a modest pressfit to a new pin. Problem solved.
3) I guess, if we're talking Alloy cases, you might have a Passon Performance case, like I do, but mine was/is dimensioned just right.