Any idea where I can find one of these

This was on a friends front suspension with a mustang II front suspension swap. We need a similar fastener at least one inch longer. 

Straight shank no taper on either side.

I'd start with Speedway motors

I have looked. Everything I have found that is reasonable close is tapered on the short side of the collar. Also called AllStar performance, they did not have any idea. The long side goes through a mono ball on the upper A arm. The short side goes into the upper part of the knuckle. Seems like that should have been a taper however the knuckle was reamed straight.

Just a short in the dark, but Grainer has a lot of this type of stuff.

Might be worth a look

A machine shop should be able to turn one out fairly easily. 

In reply to RacingComputers :

Thanks I will try them.

Currently waiting on a response from Coleman Racing. They are looking to see if they can match it up with something.

Coleman custom made a set for me. I tweaked a few of the dimensions in addition to the length and ended up with a good fit.