First post and in need of your knowledge. Is there a difference between 68 and 69 on these parts. Hood hinges, hood latch, and hood latch catch. I need all of these for my 69ss. Any and all help appreciated.

Yes, there are three different hinges but as long as you use hinges that bolt to the hood, you can use a 68 hood on a 69 or visa-versa.
There is also a slight difference in the latch area of the hoods.

you might do a search on 69 hood and see what comes up.

you could need any of 3 different hinges. You have to measure the holes on the hood to be sure of what you need. The 69 hood had a measurement of 14 1/2 inches between holes. The 68 SS hood looks the same but has a measurement of 12 1/4 inch or 12 3/4 inch measurement. I have seen cars with all 3, so check yours before you buy hinges. The latch is different on the 68 and 69, but the hood latch striker is the same for both years.