I cleared 33's on 15x8's on this '86 with a 2" BL.
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I hammered the inner body seam and the tires only rubbed a little(not enough to cause harm) when at full lock when turning into a driveway.

More than tread lightly. Leave it like you were never there, nor anyone else.
'90 X-cab 4.88's 33 BFG AT's, rr ARB, Headers, Ignition upgrade, cold air induction.
'91 X-cab 5.29's 315's BFG MT's, rr ARB, custom bumper and flatbed