you have to be care with the 4/6 drop .... custom wheels in the front will/could stick out past the fender lip....my stock tires were perfect...my 305/50/20's stuck out 2.5 inches past the fender...thats why i have 3" bulged off road racing fenderson the front
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you can see that, if you were at the lowest drop and hit a bump , with wide tires and rims, your tread would be rubbing the fender lip
Btw I LOVE your truck..... you have done some very nice work