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Hey, i have a set of aluminum aftermarket wheels on my truck, im trying to get new ones, the only thing i know about the current ones is that they hold a 35x12.5xR16.5 BFG a/t. I saw some wheels on jegs that are made by "Ion Alloy" they're called series 171 (black inside with the polished aluminum lip, kinda look like alcoas) They have 15 and 16" diameters and 8" and 10" widths. and it says "-38mm offset". From my understanding the offset is the centerline-backspacing so if its a 10" wheel thats a 3.5" backspacing?
Basically im curious if one of these Ion 16x10 or 16x8's with -38mm offset will fit my OBS straight axle F350 that previously ran 35x12.5x16.5 BFG's? anyone have any info that could help me understand wheel fitment or figure out if they'll work?
thanks a bunch
-Dicky
 

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Yes they will fit. The 16.5 rim is aftermarket already. The stock size is a 16x8 rim. If you go to a 16 inch rim you will have a lot more tires to select from.
 
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