Myself, I prefer to buy custom wheels, that give me the offset for a wider stance. That is what I liked about the wheels I have. They are 18"x 8.5", with 0 offset. The 265/60-18 tires are at the edge of the fender but not out from under the fender. I dont have to worry about, bearings and steering geometry problems. If you go with spacers. Billet and hubcentric is the way to be safe. If you buy less than 1.5" thick. You may have to cut .25" off the factory stud. The factory studs are 1.5" long. So the wheel mounting face will rest on the stud. Instead of the face of the spacer. unless you shorten the studs for the 1.25" spacer.
I got a set of 1.25" thick from Dan Long, when I bought his wheels. I didnt need them. I sold them to a member. He forgot to saw his studs shorter. His rear wheels almost fell off the first hundred miles...LOL. I asked him why he didnt shorten the factory studs, so the faces would mate up. He said, his dad said, not too. So he in turn sold them. He said, he was on the highway, 70mph and the rear wheels started wobling (falling off). His dad almost caused a wreck, with his bad advice.
One other reason I dont care for spacers. When I have used them. I use medium lok-tite on them for safety. Then that turns into a pain in the butt, for brake jobs and other wheel off repairs.
If you plan on spacers on your stock wheels, 16"x7". I would use 1.5" hubcentric, front and rear. Or 1.25" front and rear and shorten the studs. I know some only do the rear, but. I like to keep the aspect stance ratio (front-rear width) balanced. I havent checked the Trac, but. Some cars have a wider width in the front than the rear. It is all about what was engineered into the geometry, for the best steering, stability and tracking control.
One example is the stang in my library. The front wheels were 8" wide, the rears were 9.5" wide. But the offsets were such, that they were geometricly equal. I know that myst members dont seem to have any problems, properly installed. That is just the way I do things, though. I usually have widened the stance on cars I build. I just Like to do it equaly front to rear, with wheels and keep the tires under the fenders.
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