It takes a 7mm Allen key.
I haven't done any in a while but it is most likely the same as durango which is a 7mm Allen socket
9mm on front 7mm on back
Depending on which model caliper it will be 7mm or 3/8 Allen.
Its not an Allen wrench its a specialty socket. Go to like autozone or a place like that. i got mine at carquest in las Vegas.
Allen wrenches come in various sizes. There is no definitive information as to what size is needed to remove a brake caliber so you will need to match the wrench size to the best of your ability.
It is not Allen . It is a 14 mm open wrench
7mm.
9mm Allen wrench
You need a 3/8 Allen Wrench
Most likely a 15mm wrench. Unlikely to be Allen in that vehicle.
7mm Allen
Not likely to be Allen key, try 15 mm regular wrench