When was it donated?
Someone doing a 67 would like to have that - just need to find the right person.

Is this something other than a 68 Z with a cross ram added? Am I missing something?

Nope. Nice car that x-ram has been added to.

I think the pad stamp is real.

Welcome John!

Yes, there are 5OR tags, built in late 69 production.

Some tag errors appear on 100's of cars, some on only one.

I assume it was just the difficulty in stamping the VIN or the fact it was hard to confirm.
But most blocks are stamped - I've seen few that aren't. Most are hard to see.

NOS bushing appear on ebay.
I'm not sure there's much a difference between the repro and originals. Others would know if it's worth chasing down NOS.

Thank you Daniel! I know that took a lot of work. Most of those slide shows would never been seen without your efforts.

HP come from the CR. Don't drop it.

I'll quote Jerry here:
You can run these on pump gas without issues.  It's the carb and dist set up and tuning that makes it happen.  Wrong plugs, jetting dist set up engine will ping.

What's the axle code?

Mine are still as-is.
Depends on condition - if they are just dirty - Simply Green or such.
Evaporust or such if they have surface rust. IIRC, there's a coating on them that you don't want to remove.

Tag looks OK. Engine code stamp looks OK.
Car definitely has been fluffed.

Yes, this was a service trans and that # is the "service replacement unit sequence number".
http://www.camaros.org/trans.shtml#service

Pad looks good, btw.

I have a different copy - it's clear and says drawing revised.

It's a little late for your car, but possible. The jack would be one of the last things into the car and your car was finished about 6/6 or 6/7.  If it's a nice jack and a good price, I'd probably keep it....