Hey guys whats up I have a question well its for my Brother in law he has a 1999 Chevy Silverado and he has some 22's on his truck with a 2 inch rear drop and he was wanting to drop it like 2 more inches in the back and maybe 1 in the front but I dont know if its possible here are the specs on the tires 304 / 40 / R22. What do you guys think? Here are some pics that might help

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i would not drop it two more in the back and one in the front then it will sit with the front higher than the back which is