After blowing out the second set of spider gears in the front of my buddies 4 door JK we decided it's time to upgrade. This isn't my first axle swap but I'm worried we're gonna run into some problems with the esp and abs when we put in a different axle. How hard or easy is it gonna be to get rid of the esp and abs when we switch in a different axle. Also does the speedo read off the abs sensors, cause we've put in 4.88 gears and the speedo still reads slower than he is going with 35's. Any input is appreciated.