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stllookn · 02-28-2006, 05:19 AM

33x10.5x15 would be approximately a 267x86x15 or 265 85 15. The more common profile would be the 31x10.5x15 which is approximately a 265 75 15. The first number is width in mm and the second is the ratio of the width to the sidewall height. 10.5 x 25.4 = 266.7 or approximately 265. (33-15)/2 = 9 9 x 25.4 = 228.6 228.6/266.7 = 0.857 or approximately .85 or "85". Anyway...if those 33 x 12.5's were 16.5's...I'd buy from ya...LOL!

02-28-2006, 05:19 AM	#6
stllookn Saving 1 truck at a time! Join Date: Aug 2001 Location: Kent, WA Posts: 6,465	Re: tire size question 33x10.5x15 would be approximately a 267x86x15 or 265 85 15. The more common profile would be the 31x10.5x15 which is approximately a 265 75 15. The first number is width in mm and the second is the ratio of the width to the sidewall height. 10.5 x 25.4 = 266.7 or approximately 265. (33-15)/2 = 9 9 x 25.4 = 228.6 228.6/266.7 = 0.857 or approximately .85 or "85". Anyway...if those 33 x 12.5's were 16.5's...I'd buy from ya...LOL! __________________ '68 C20 Longhorn 50th Anniversary 400/TH400 '68 C20 Longhorn 50th Anniversary 468/TH400w/buckets '72 C20 Halfhorn (Longhorn w/o cab and front clip) '69 Flxible Cruiser (look up ugly in the dictionary)