Where would you put a level on the x5 to see if the transmission is level for filling

[ix&x5]

My drive way is not level but i have a number of floor jacks.

[AV8R4AA]

I would think a level on the door jamb would suffice

[oldskewel]

Drive your car onto level ground (like a parking lot), and then find your measurement spot. Then repeat when you're back in the driveway making it level. That's what I've done, actually using a magnetic level, shims, and tape.

I expect professionals do the ATF level check when the vehicle is on a lift, so the 4 lift points define what "level" is.

[kevinkay]

When I did my trans flush I put the level on the running board

[Proflyer]

Right across the bottom of the pan. No need to overcomplicate things.

[SlickGT1]

Yup. Second. Level on pan. The pan is the dipstick. Meant so that you don't overfill or underfill.