89 Suburban 5/7 drop,question on tire clearence

Hello ,I have a suburban that has been lowered 5" in the front and 7" in the back.I would like to put some 22" rims but dont know the back spacing,and will they clear the fender wells.If not I will cut the fit ,but just wanted a heads up.The kit is a bell tech kit with 2.5 drop spindles and a flip kit in the rear.Any one have some good bag kits for this year truck also ? Thanks

check out my picks i have 275-45-20 so they are pretty big and im laying framei took out all the inner fender and tubbd the rear

tires 265-35-22 rims im not sure on the back spacing but i had 22's on a silverado with a 5-8 drop and the just needed the fenders rolled