Hi,Apparently I need to change my gas pump . My LR3 has 100,000 miles. When I was looking up the part, I found out that there are two different types of gas pumps depending on whether you have the old style gas tank or the new updated gas tank, How do I know which gas tank I have? or better yet, which gas pump do I need? WGS500110, WGS500051 or LR016845?Any help will be greatly appreciated!Cheers