I don't know that particular vehicle, but I must say it doesn't seem like a huge imposition to get under with 3-4 different wrenches and try them for size. I change MANY front pads and usually follow that pattern.
3/8 inch Allen wrench.
Either 10mm or 3/8"
Which allen wrench to change brakes on mazda tribute 4wd 2005?
What size wrench do you need to change the front brakes on a 2001 dodge durango?"
A wrench
what size allen wrench do i need to change front brakes on a 2004 dodge grand caravan
you can put a wrench or a socket on the tension pulley, releasing the pressure on the belt.
You need a torx type socket. If you use an Allen wrench...you will strip out the inside of the bolt.
I think that one is a 3/8 Allen.
The calipers are held by 17 mm bolts.
A 3/8 Allen key.
You need a 7mm Allen key.