Shearing spacer & wheel studs

[Rob175kks]

Hi guys,

This has happened to me twice now. After driving on track for a while all of a sudden something it will feel odd and not under control at the rear…………the nearside rear spacer's spigot(?) shears, and a stud or two will snap off, leaving the remaining ones loose.

When I first bought the car it had wheel studs and 10mm hubcentric spacers on, they sheared so I bought some Eibach spacers & extended Drifworks bolts to replace the studs, thinking they may both be better/stronger than the originals.Nope! They both sheared off in just the same way.
I’ve been lucky not to have a massive accident. I don’t want it to happen again.

In each case the wheels had been put on by different garages, the last was motorsport alignment company.

Does anyone know what could be causing this? Any help much appreciated.

Rob

[andyiley]

Something is fundamentally wrong for that to happen.

Best guess with the information you have given is they were either way too tight, torqued incorrectly, or are too long.

You need to start off at a normal set-up for the safety of all concerned.

[Rob175kks]

I agree. I'm going to return it to standard before I use the car again.

Thanks for the reply.
Rob.

[3MPSmk2]

I sheared 3 studs on track at Snetterton in December.

I put it down to respraying my own wheels. I use a boat load of paint doing a holo flake finish, and I didn't clean off the nut mating faces. The paint must have got hot and soft, and the nuts lost tension, and gave way.

[andygtt]

sounds to me like the nuts are all loosening, when they loosen they will quickly sheer a few of the bolts... if this is the case then its possible the wheels are not centring on the hub, do the spacers have hub centre locators on them and for the wheel?.

How large are the spacers? and pics of them or examples of them?