Ok! Here we go!

I have a 91 FC and I brought a set of wheels 17x8 with +45 offset.
I need to throw on a set of 10mm spacer. My question is...

1) Do i need to extend my studs?
2) if so, what's the length of our current studs?

Someone respond please, I'm dying to put them on.

 

go to summit or wherever and buy ARP late model camaro/firebird studs. they're cheap enough, you'll get em in a couple days.
they look badass- they're a bit longer and gold. the fronts will be just right, but in the rear they are like an inch longer than necessary, so you'll need open ended lugnuts.

oh btw- changing the rear studs requires destruction of the wheel bearing. so you'll need a new set of those too.

 

or get spacers with studs pressed into them

 

15mm spacers would yield a better offset.

 

grab some 20bolt on spacers..

done.