Torque Multiplier

[EngineerMike]

I've never held an X-12 in my hand. I went the way I did because of cost and a sense of adventure. Dale says he's got one, and hopefully can fill us in on its use w/the Alpine wheels.

I've had the fronts off my coach on the slab next to my house, and done torque tests on the rear lugs. Haven't actually R&R'd the rears yet, but have to do that in the near future as a favor to someone. I'm pretty sure they are hub-piloted like the fronts w/the inner & outer just pressed together via the lug nut torque. That's the way my Trek P-30 rear duals were which I did change myself.

[Dale777]

Wayne R,

The X-12 lug nut socket size to choose for the Alpine Coach is 1 5/16" or a nominal 33mm. The 1 5/16" socket does fit somewhat loose on the lug nut, but it works, and that is what the X-12 vendor recommended.

a. I measured my lug nut with a micrometer which read 32.75mm. So, 33mm is a bit large.
b. 1 5/16" = 1.3125" = 33.3375mm. So, 1 5/16" is also a bit more too large.
c. However, 32mm would be too small.
d. The closest fit would be 1 19/64" = 1.296875 = 32.940265mm. I don't think you can buy a socket in this size for a lug nut.

The X-12 can be used on the rear wheels. See these pictures I took with my X-12 attached to a lug nut of a rear wheel of my 2006 Alpine Coach:

[Wayne R]

Thanks Dale, it looks like the one to get..

[Wayne R]

Emike, I had them off my P30 also so I know what to expect. Thanks