Actually, good springs (and yes OEM is good springs) lasts for millions and millions of cycles, most cars in the junkyards still have perfectly good springs on them. If a spring is truly sagging, it was likely damaged by extending or compressing farther than its design. The old leaf springs in cars decades ago, it was easy to damage them, and yes, they often sagged. Modern cars with coil springs, it rarely happens.my front springs are probably tired
Ross did a good job describing it, what give you good off road ability:I only ask this question about lifting because I have never done one, in my day it was lower/ chop/ channel. Is the sole purpose, other than ascetics, to allow you to put larger tires to raise the differentials higher for more ground clearance?
I always ask for axle to fender measurements to accurately determine lift height.OK for the original poster, I poo-poo-ed on his idea, but now realize he has a great idea. Regardless of how/why you're doing the lift, he has a good way to measure the result, so as to advice others on what to buy, that doesn't change with tire size and other variables. It is a smart way to do it.