Quote:
Originally Posted by REDanan
To save money on tires! No, for a smoother ride.
Today I tried on the 15" steel wheels and through my internet surfing found the offset went from 40mm to 36.5mm, so I only needed a 2.5mm spacer on the front wheels [the Universal wheel spacer from Pep Boys was too big in diameter, so I used individual washers]; nothing for the rear. So I'm GREEN to go! The special order Wide White Wall tires from DB will take 2.5 weeks [which still cost less than the 17", including shipping!]. 
Anybody want the stock 17"s with tires only 20k for $800 + shipping |
Please tell me that you didn't use hardware store washers behind your wheels ...
If so, I would be highly cautious. You need the friction load of the wheel against the hub to take up some of the impact of bumps and to keep the wheel "hub centric". Using washers puts a lot of shear load on the lugs. The washers simply don't have as much grab as the wheel mating surface does.
The purpose of the lugs is not to bear the load of the car but to hold the wheel firmly against the plate and let the wheels rest on the hub assembly.
Try to find some proper ring spacers at least.
Be careful...
Brian