I am looking to upgrade my Dana 30 and 35s by beefing them up. Is it worth it to upgrade from a 27-spline to a 30-spline chrome alloy axle shaft for either axle? I am looking to pair this upgrade with air lockers and a regear to 4.56 for 33 inch tires. Not doing extreme rock crawling but I do go offroad and on decently challenging jeep roads fairly often.