Question: body removal

[weegie]

I am trying to confirm a vin number and need to lift the body to access the top of the frame by the #3 mount. is this very involved . any advice would be appreciated. The number at the # 4 rear body mount is not there due to a rear collision and bubba repair

 

[6880 Mike]

...is this very involved...

Yes. Very involved. Here's what you're looking for:

...any advice would be appreciated...

Skip it for the time being. This is more work than you want to do. If there are no title issues with the car, you honestly do not need to take the body off the frame just to find the frame stamp.