Alternate ride height measurement question

[jhama78]

Gents, it seems to be standard procedure to measure from the fender above the center of the tire to the ground to establish a baseline for ride height. I understand that this is a good way to see how far you actually lower your truck after installing new suspension, but it really only is accurate on each vehicle individually because of tire size. Obviously if two trucks are running identical wheels and tires then the measurements could be more closely compared.

This brings me to my question... Has anybody measured from the fender to the center of the spindle or rear axle flange while doing suspension work? This would eliminate the tire diameter variable and allow more or less a direct comparison between trucks and ride heights would it not?

I could be completely off base here, but if I knew the spindle /rear axle flange center to fender measurements of say a 69 c10 with a 3\5 drop, could I not compare them to my stock sagged 67 measurements to see how much a similar set of springs would lower my junk?

If this has been discussed previously then please excuse my repost, but I'd be interested in hearing you alls opinions on my brainfart