HELP! Body Number Location on 70 340 (H Code) Swinger

I got my vin from the trunk lip area by putting some masking tape on the underside after feeling around for the 'bumps' and rubbed a bit of grease off the differential on my finger and lightly rubbed the tape and pulled it off and just reversed the numbers and wrote them down. I did not want to remove anything as the car is done. When I do the motor and suspension swap I will be taking off all the front sheetmetal to repaint the inner fender and firewall areas so I will get them numbers then. Kind of a 'moot point' as the other numbers match but I can say then that all body numbers match!!
Chas