You need 7 mm Allen key
I don't think that's Allen. It may be 13mm wrench. -Have small wrench set and Allen set ready and you are prepared.
You need a torx type socket. If you use an Allen wrench...you will strip out the inside of the bolt.
7mm
It is a 3/8 Allen wrench
They're metric. Try them until one fits, that's what I do.
27mm
I think that is a 14 mm open wrench, not Allen.
A 3/8 Allen key.
Should be 10mm or 3/8ths Actually, it turned out to be 7mm Allen wrench.
I had the same issue of getting the right size so I called up a Dodge dealership. They said use a 7mm hex (or allen). Not a typical size, but you should be able to find it at a Sears in the wrench type or socket (which I prefer). It should only cost a couple of bucks, around $5 tops.
It's a 7
Depends on your driving habits.