OK, I was going to order some black steel wheels from Summit this week for an '83 pickup, but they offer 2 different sizes of Center Bore Diameter. Would I need to order the 4.280 in., or the 4.250 in. ? I'm going to run 33's or 35's x12.5. What would be the advantages or disadvantages in getting 8 in or 10 in wide rims? This rig will be a daily driver/trailrig, but no rocks since I'm in MO. Thanks

 

The 6 on 5.5 lug pattern Toyota uses is common to Chevy, Nissan, Isuzu, and others. But the diamete of the manual hubs on Toys are larger, so the center hole is larger (for ex, you can put Toy factory wheels on an Isuzu, but not the opposite).

So you want the larger center hole size.