2007 Tacoma Wheel studs

For the first time I attempted to rotate the tires on my 2007 Tacoma 4x4. ( 7400 miles ).

I know what EVERYONE will think, but I swear I am not the "other nut at the end of the wrench".

I have done this for over 30 years and use a torque wrench ane have never had an issue on any vehicle. This was the third of my vehicles I did today, the others having no issues ( and causing me not to doubt the torque wrench).

The pass rear wheel was glued to the brake drum. A slight rap on the back and they came off ( dealer recommended this when called just to be sure there was nothing I missed ). Thats bad enough.

When I retorqued the nuts, using a torque wrench, in steps of 40,60, to 85 ft-lb, the final torque, one stud twisted off just as pretty as can be.

Anybody else had an issue? I am concerned that the studs may have a metallurgical issue.

"Yaker" wrote in message

> For the first time I attempted to rotate the tires on my 2007 Tacoma
> 4x4. ( 7400 miles ).
>
> I know what EVERYONE will think, but I swear I am not the "other nut
> at the end of the wrench".
>
> I have done this for over 30 years and use a torque wrench ane have
> never had an issue on any vehicle. This was the third of my vehicles I
> did today, the others having no issues ( and causing me not to doubt
> the torque wrench).
>
> The pass rear wheel was glued to the brake drum. A slight rap on the
> back and they came off ( dealer recommended this when called just to
> be sure there was nothing I missed ). Thats bad enough.
>
> When I retorqued the nuts, using a torque wrench, in steps of 40,60,
> to 85 ft-lb, the final torque, one stud twisted off just as pretty as
> can be.
>
> Anybody else had an issue? I am concerned that the studs may have a
> metallurgical issue.
>

When you say that the "stud twisted off" at 85 ft-lbs of torque, do you mean
that it broke? If it was cross-threaded or if the threads had debris, that
can cause them to snap. More likely, the stud was defective. Bring the
pieces to the dealer to see if they will cover it under warranty.

You didn't mention whether you have steel or alloy wheels, but alloy wheels
should be torqued to about 75 ft-lbs and steel to 85.

It is no uncommon for wheels to stick to the mounting surfaces - a little
anti-seize where the wheel contacts the drum or rotor will prevent further
sticking.
--

Ray O
(correct punctuation to reply)