I have decided to go from my ugly mopar wheels back to the stock configuration with original hubcaps for a little while so I picked out some wheels that looked like my spare from a junk yard for a good price. After I had already stripped and primed them I noticed that two of the four were a half inch wider than the others. I recently re-read the Tuning B18 Series Volvos publication and notice that it recommended the use of P1800 wheels which it stated were 4 1/2" wide verses the 122s 4 inch width (it alternately said that you could special order volvo 5 1/2" rims). So I guess I must have picked up a pair of 1800 and a pair of 122 wheels. Can I mount the same size tire on all of these wheels? Is there a driveability issue involved with having wheels of slightly different sizes? Where should I place the wider wheels, front or back?

Thanks,

Mario m.