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QUOTE (sphinxxx @ Oct 21, 2010 - 7:09 PM)

>In my experiance with spacers....
If you get the spacers that DONT already include the wheel bolts than you should be okay with just extended studs on the hub... the spacers WITH wheel studs built in i wouldn't trust!
Spacers are mainly all the same just make sure you dont go too thick, cause the hubs/bearing take a beating! especially if you're slammed!
first, spacer that include the studs and the ones that use extended studs can be both safe if you get the right ones
second, not all spacers are the same
the key word when buying spacers is HUBCENTRIC
your spacer selection should go like this
1- how thick you need it ?
2- do you need bolt pattern conversion
3- MAKE sure they are hubcentric and designed for your specific car
you should stay away from ANY universal spacer, spacers should be made for an specific application, like for example, a spacer made for the celica will not fit a Dodge neon even when both cars have the same bolt pattern, the hub is different.
the spacers with studs already on them are mainly used for bolt pattern conversion or very thick spacers where extended studs are not available ( 1 inch or more )
you can get extended studs for up to 20 mm spacers, and this should be your first option, but not because the ones with studs are not safe, but because the less nuts you have to torque down, the less likely you are to leave one loose or not torqued to spec.