im looking to buy a 1998 jeep grand cherokee that is straight 6 4L engine. It has 240k miles on body, 150k on motor, 100k on transmission. Has dana 35 front and Dana 44aluminum rear axles, it's sittin on 35 12.50 15 BFG Mud terrain KM2 s with less than 10k miles on them. all under an 8 inch lift. How many miles do you think this jeep will last for with good maintenance, also the guy says it needs a front drive shaft and im wondering what that would cost me as well. btw this is all going for $4000 thank you.