SIK L wrote:If I run a 10.5" width in the rear, what offset range should I look for so the wheel won't stick out from the fender?
First off, why do u want to run a 10.5? Is it a must? Why not a 9.5... 2nd. Running 10.5" rears on our cars without a little poke is not impossible but it's very close to it...
Peep my man Marley Marl's rear set up @ 10.5" he's sticking out at +42 and I calculated already nd he killed his backspacing by 17mm, that's almost a full inch, I dont know how much further u can go back there without interfering with something, u might have to measure that yourself. My recommendation is to get a 9.5" nd a high offset & call it a day.
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P.S. To answer your question dead on, if you want that 10.5" inside the fender, judging from Marley's setup, you'd have to add about 14mm (give or take based on where his wheels sit) to the +42 he's on... so that'd be 10.5" @ +56... I calculated that for our cars & you'll have 31mm (more than 1") less inner clearance, God knows if it wont interfere with something. GL.