Changed the front wheel bearings on my 2010 SRX. Had trouble finding out the size of the axle nut online, so I thought I'd post it here. A 1 1/4" Axle nut socket fit perfect. Possibly a 31MM or 32 would also work. But the English size worked perfect. The car only has 59k miles on it. And those wheel bearings were a bear to get off. A little cleanup of corrosion and some grease, and everything went back together smoothly. I just thought this was something worthwhile to put up for future reference.