You're quite welcome. Mine were the same, and I need to finish out my other three wheels. I'll get to it eventually!

 

Thanks Alex, this wiper mod made it so easy to go back to D2 arms. My only change was using socket cap screws and pressing out those metal tabs on the D2 arms with my socket (rather than pliers). I'm using Michelin High Performance All Season Wiper Blades from Walmart and they worked great in winter driving conditions.

 

Primary number will be the metric measurement for an 18" rim unless only one metric size is listed. First number inside parentheses is the imperial measurement, overall. Second inside the parentheses is the metric measurement for a 16" rim. Third number inside the parentheses is the measurement between opposite corners of the tire from a top-down view. This is the biggest measurement that matters because it takes tire width into account. If you know this measurement for your vehicle (at a given rim offset) then you can almost guarantee you're maximizing the use of your wheel well.

All fitment recommendations assume stock or near stock wheel offset.

Primary (First#, Second#, Third#)

Listed largest to smallest.

315/75r16 (34.6 x 12.4, 36.75 corner to corner) - Minimum 3" lift required. Will rub radius arms without spacers. Body trimming required. More extreme trimming required with wheel spacers or wider offset wheels. Front bumper trimming or replacement necessary. Spare carrier modification necessary even after flip.

285/75r18 (34.8 x 11.2, 36.56 corner to corner) - Minimum 3" lift required. Will rub radius arms without spacers. Body trimming required. More extreme trimming required with wheel spacers or wider offset wheels. Front bumper trimming or replacement necessary. Spare carrier modification necessary even after flip.

285/75r16 (32.8 x 11.2, 34.7 corner to corner) - Minimum 2" lift required. May rub radius arms at full lock and rear of fender well at full flex, vehicle dependent. Spare carrier flip necessary. Front bumper trimming or replacement necessary.

275/70r18 (33.2 x 10.8, 34.9 corner to corner) - Minimum 2" lift required. May rub radius arms at full lock and rear of fender well at full flex,vehicle dependent. Spare carrier flip necessary. Front bumper trimming or replacement necessary.

245/75r18 (32.5 x 9.6, 245/85r16. 33.89 corner to corner) - Rubbing likely with no lift except in outlier cases, recommend 2" lift to guarantee no rubbing. Spare carrier flip necessary.

275/65r18 (32.1 x 10.8, 275/75r16, 33.87 corner to corner) - I have run a used set of these with no lift, no rubbing. I believe this is an outlier case, recommend 2" lift to guarantee no rubbing. Spare carrier flip necessary.

235/75r18 (31.8 X 9.3, 235/85r16, 33.13 corner to corner) - No lift possible with no or minor rubbing. Safe choice with no lift if you do not mind chance of very minor rubbing, 2" lift recommended to guarantee no rubbing. Spare carrier flip necessary.

265/65r18s (31.6 x 10.4, 265/75r16, 33.27 corner to corner) - I have run these with no lift and no rubbing. Some report minor rubbing. Safe choice with no lift if you do not mind chance of very minor rubbing, 2" lift recommended to guarantee no rubbing. Spare carrier flip necessary.

255/65r18 (31.1 x 10, 255/75r18, 32.67 corner to corner) - Almost definitely no rubbing at stock height except possibly in extreme outlier cases. Spare carrier flip may be necessary, vehicle dependent.

265/60r18 (30.5 x 10.5, 265/70r16, 32.25 corner to corner) - Stock suspension, no reported rubbing. Spare carrier flip not necessary.

245/65r18 (30.5 x 9.6, 245/75r16, 31.98 corner to corner - Stock suspension, no rubbing. Spare carrier flip not necessary.

If you'd like to input your own tire sizes and do the calculations, use this tire size calculator and this triangle calculator. Make sure triangle angle is set to 90 degrees, input imperial width and height to get corner to corner measurement as the "third side" of the triangle.