1970 Javelin wiper motor shafts

I found it hard to install the linkage in the past because the pivots want to flop about. What I did was feed some fine gauge solid wire from the pivot mounting holes, through the cowl and attach it to the pivots. Then I simply pull on the wire to draw the pivots up through the mounting holes.

I used AWG26 solid partly because I had a good supply of it, but it's fine enough to wrap around the pivot and not interfere in the mounting hole. Using sulid wire means it's stiff enough to feed through the cowl without bunching up.

In your case,  the wiper motor is installed. Maybe you could use the wire to hook a loop around the knurled post and draw it through the hole. Once the post is through, you can spin it by hand to align the flat.

And if you do - the worst position for reconnecting is with the motor in park position.

I have a roll of stainless "safety wire" I use for a lot of things like putting those shafts back in place.

The reason you can't post photos is that there are morons called forum spammers out there that join forums all over the world, most of the time they have no clue, it's a forum that has visitors, so they get paid to spam the forum. 
The join and post photos of nudes, including the illegal type - I hope I don't have to explain THAT one - and all sorts of other stuff. 

So the RULES that no one reads state you need a minimum number of posts - need to be here a while so people can see you actually know what a car is and have heard of AMC first. 

It's not a weird rule at all - in fact, most of our rules were stolen from other similar forums! 
I'm a member of other forums that have that rule - and even more strict. 
I guess  some including the young, are just used to fakebook and tweeterdumb where you can post anything, real or not.

Mario B.