Even if you don’t go with a spring-over, borrowing the flares from the later TJ Wrangler is a fast and easy way to fit bigger tires. The fenderwells shrunk from the CJ to YJ but the TJ fender openings were bigger than either. You can get almost 2 inches more uptravel with TJ flares and more tub clearance. Don’t bother scrounging for used greyed flares, since complete new sets are available for around $140 plus shipping. Quadratec, 4WD Hardware, and Collins Brothers Jeep are good sources and they are usually in stock.