I'm going to switch out the live rear axle in my '01 GT for the 03-04 Cobra IRS, but I'm unfamiliar with them and don't really know what to look for to find one in 'good condition' or if that is even a thing. I'm planning on replacing all of the bushings and adding bracing and a crossmember either way, so my question is whether or not a high mileage one will be any different than a low mileage one at that point? Are there other parts that wear down after a 100k+ miles? I see ones on crashed cars with around 150k miles on them for less than a grand often, but the lower mileage (but also stock) ones go for closer to 2k. Is it worth it to spend the extra on the lower mileage one for what I'm doing to it?