I have a trusty Hollander Interchange manual and have issues finding part numbers. Maybe one of the pros can help. I have the concept down of searching for my year, make and model at the beginning of the section. The problem comes up after I look for the reference number that is listed. Here is an example: I am looking in the shock section for front shocks for a 1959 1/2 ton so it is an “other” and listed as 30. When I browse 30 it shows that 1959 1/2 ton front but does not show a part number I know I have front shocks so what does that mean? Should I look at the previous numerical listings or does this manual not know what the original part numbers were?