Hi Marshall8hp, thanks for your reply. I have sent the details to Rimmer Bros to see whether this information will help.
The big problem is that I don't understand the relationship between the VIN nr. you mention, VA350717, and my VIN nr. SALLPAMW31A452327. I have asked Rimmer Bros if the VIN nr. VA350717 is something that they can look up. Incidentally, my vehicle is 2001.
Gilbertd, when I looked at the Russian website for LRCat I could find the main diagram for the door handles, but if I look at the individual descriptions there is no diagram, it just says there is no pictures available but has the image box which is blank. I was hoping that I could have checked the part number against the diagram, but unfortunately that can't be done. That was the reason for my reply earlier.
The diagram showing the complete handle set definitely shows two handles [left and right] and two significantly different mechanical parts on the inside of the handles, namely the hook-shaped plastic pieces. One is definitely right handed and one definitely left handed. However, I do wonder of Marshall8hp is correct in saying that the same handle is used on both sides after 1996.
The thing is, on the Rimmer Bros site it says that 8126 and 8127 are for vehicles up to 2001, which is the same year as mine.
I was hoping to get the new handles and keep them in the garage until the weather warms up a bit and then strip the doors and fit new handles. Now it looks like I have to strip both rear doors, check the opening mechanism, put everything back and then order the parts. And then do everything again later.