I remember being taught about how to tighten front wheel bearing nuts after repacking the wheel bearings , on any GM or other brand cars that had ball bearing wheel bearings you would slowly tighten it up until you felt a tiny bit of resistant or tightness when spinning the tire and then back it, the nut, up a tiny bit and stick the cotter key in to retain the nut.
On all the other cars with Timken tapered roller bearings we would tighten them up while spinning the tire by hand until it started to slow down a tiny bit and back it off, the nut, so you could install the outer nut cover so you could install the cotter key
If you do the math conversion from inch lbs. to foot lbs. 70 inch lbs. = 5.83 ft. lbs., 90 inch pls. = 7.5 Ft lbs. Is the difference between those two a tiny bit tight or just barely getting tight?
Remember to calibrate your elbow at least once a week with a certified Ft. Lb. and Inch Lb. torque wrench before using it to judge torque