If I could jump in here, I've got another question I would like to ask. I've also got the P275 60R 15 tires on my '86. When I got the truck it came with what looks like 10 inch wide aluminum wheels on it. Wouldn't you think that 10" is too wide for this size tire? I can't tell for sure, but it looks like the tires are cupped in the middle because the wheel is so wide (forcing the sidewall out). I'm thinking of getting rid of these rims and buying something a little narrower, maybe around 8 inches. What would be the correct wheel width for these tires? Thanks.
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2012 Silverado LT 1500, 5.3, 6 speed auto
'86 SWB C-10 Silverado
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