Wiggy333
From what I know 69 part numbers were general Capri. 70 part numbers were more a GT reference to V6. Has nothing to do with year made and no 71 or 72 year change on parts. The front struts for instance have the same lower legs on all Capris from 69 to 72 but the casting number didn't change from the first till last.
Part numbers have nothing to do with age.

69 parts were the original 1969 parts, agreed. 70 part numbers were those used specifically for the GT/V6 from Jan, 1970 when assembly commenced. Therefore, it has everything to do with when the parts were available for the particular model. The struts used are the same on all Capris agreed and the part number didn't change because it wasn't improved or upgraded. These 69, 70 etc. have everything to do with the year when the part was first used.
 
A further example is that I sourced a 2V head for my imported Mercury Capri 200cid. I found that there were 2 types of Australian built inlet manifolds, one cast in 1972 and one in 1974 with slight improvements and they had part numbers including 72DA and 74DA. So, you see that's what Ford did, it used the year to show when the part was first introduced!

The keywords there are first introduced.  So a part like a control arm with a 69 part number in a 71 capri means nothing about the age or originality of the car.

Meaning a 69 part number could have been made in 72. No reference to identify when the part was made. A 69 part number on a 72 Capri could be 3 years old or 3 weeks old only Ford would know that.

Den
I'm more interested in knowing about sm3004, is this number part of or is the shell number?

Where are the SM3004 number located and on which part or location? It's definitely not a shell number as that's your chassis number CK17*******P (I forget the rest of your number), etc. Are there any other numbers or letters with this SM3004 number?

Den
I don't dought any of what's being said. I'm taking notice. Yet I have found bss 1004, located on car part. Bss for instance is it comenly used other than bss car?

Den, you can't just keep putting up mysterious numbers from unknown parts! IF, you really want help then you must take photo's and post them along with your relevant question about that particular part, with the numbers, like BSS 1004 or SM2004, etc. If you don't do this then we really can't help you.

So their is a Capri for sale on eBay Gumtree at the moment claiming to be a 1973 Capri. I don't know if it's true nor would I waste their time trying to find out. We all know hopefully that one or two were only sold in 1973. They weren't specials either just last stock from Ford Stockists.

I had a Lime Glaze '73 capri.  It was actually built in October 1972, but first reg in jan 73, therefore a 73 model as was the recording system back then.  Chances are the advertised one is similar  

Correct JR date it sold ford holding yard would have said good ridence put a plate on it and a final touch. Car finished and sold in 1973. Probably not collected by the dealer who ordered 30 but sold 29. Only my thoughts.

gtv6capri
I had a Lime Glaze '73 capri.  It was actually built in October 1972, but first reg in jan 73, therefore a 73 model as was the recording system back then.  Chances are the advertised one is similar  

A 1973 model, mmm, this is based on the UK idea of K, L, M, etc reg plates, which I disagree with also! I believe that the model year is what is shown on the Vehicle Identification Plate, based on the alpha characters, ie. in Australia ME is 1972, August! There are no 1973 Mk.1 Capri's in Australia, unless they are imported from the UK and built in 1973, as shown on the Vehicle ID Plate, my opinion! Same goes for the Capri280 Brooklands, they were all built in 1978, November, (DD) hence there are no 1987, 1988 or even 1989 Mk.3 Capri's! Once again, my opinion.

Terry to get it straight all Capris Mk,1 have ck17me?????p numbers. Built one after another until August 1972. They would have received paint not much else? Thing is that when they were completed in factory from that point is my point. A car made in August could make it until 1973 to be sold and Ford would put a final build date until then. I well agree no Capri was built after August. 95 percent positive of that.