if you use rims without the correct offset, sure . the problem then is how long the wheel bearings will last. i ran 13x7's on my 84 gsl. 17's might prove to be too tall ,and would probably raise the ride height. most peoplewent with 15x7's without any problems
your tires will touch theiside fender wells
Horn's should be in the fender wells in the engine compartment.
Check inside the front fender wells behind the tires.
take front wheels off and go through fender wells
The plugs are accessed through the fender wells. Not to hard to change.
K in the fender wells if it is a 5.o l they are left and right of cyl head under exhaust headers
the reservoir should be on one of the inner fender wells and the pump is on the bottom of the reservoir tank.
Well...the first step is to remove the old fender. To start, you will need to remove the hood. There shouldn't be many hood bolts, but it would be advised to have some help holding the hood. Once you have this done, start removing the fender bolts. Be sure to remove any bolts or screws in the fender wells and ground affects (if on the body). Once you have all this done, pull the fender loose (don't force it off, theres always that one bolt you missed) and once its free, just reverse the process to get the new fender on.
There should be rubber plugs in the low spot of the trunk and the fender wells. Look underneath, you can just push them up and out of the holes.
getting some tire spacers, they are sold in many widths, all depending on hofar you may want your tires out.
The easiest is through the fender wells. You can even take off the tires to get more room. It is the easiest way I found anways.
Depending on where you live in Cali, and if the CHP's are in a bad mood, you can get written up if your tires stick out past your fender wells. As far as I know, fender flares will work too. They are just afraid of the bigger tires throwing rocks.