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Toby_E asked about calculating wheel offset..... The calculating part is pretty easy. The goal, from the bearing's point of view, is to keep the centerline of the wheel in the same position and let the width of the wheel increase both inside and outside. Therefore the offset should not change. The backspacing (measured from the inside wheel rim to the mounting face) will change by half the difference in the widths. The problems are two fold. The first is that wheel manufacturers only offer a limited choice of offsets unless you shell out the bucks for custom billet or two piece wheels. The other problem is that you have now moved the inside edge of the tire and wheel in about 3/4 ". You will probably experience tire rubbing problems. If the goal was to keep the inside rim of the wheel in the same realtive position with respect to the body, then you would let the offset decrease by half of the difference. All of the width change to the outside. So to go from our stock 114.3mm (4.5in) wide rims with 43mm offset to a 152.4mm (6in) wide rim the offset should decrease by y3¹ mm) of the difference 152.4-114.3=38mm) in the rim widths. Then new offset should be 24mm. Unfortunately the same problems apply. You will just be rubbing the fender instead of the inner wheel well. Don't have the answer to which wheel/tire combo is best, but I am working on it...... John Jaranson '71 FI Auto Fasty (I wonder how hard it would be to resculpt the inner fender wells to handle those 245/40r17's........8^) ) ------------------------------------------------------------------- Search old messages on the Web! Visit http://www.vwtype3.org/list/