71 RoadRunner - Need Z axis frame measurements please

[1971_Roadrunner]

Good morning all... I have the X and Y dimensions from my Plymouth manuals, but I really need the floor to frame (Z) measurement numbers and reference datum locations.

Can any one either point me in the right direction or post what I may need?
Thank you all.

 

[ct71rr]

Hi, like this? I just ordered a set.

https://www.ebay.com/itm/1971-Plymo...epid=0&hash=item33804cb9a6:g:PFAAAOxyQj9RMPKn