Widest FRONT wheel??

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I've seen several posts with requests for measurements and specs of the widest wheel that we can bolt to the back of these trucks....How about the front?? I'm sure a factory height truck is going to have more room, but I'm talking about trucks with at least 3"-4" of drop.

Here's a couple pics of when we bolted both of my 9.5" back wheels on to one side of Brian's 71. Of course we didn't try to drive it like this...but I like the look of a wide front wheel.









These wheels have 4 3/4" backspacing....I'm guessing about 5.5" of backspacing would work??? Of course that might cause some inner fender/control arm issues. A larger diameter wheel could possibly clear the control arms (if there even was an issue here). It could be worth the inner fender mods in order to pull off the look? Of course, then we might have to widen the rear tubs and try to get some 11" or 12" wide rims back there....