If you plan on engaging 4wd you'll need to regear. If it were me I'd keep the front driveshaft removed until the gears were the same.
X2, neither ratio would even be close to a good ratio choice for 35's. 4.88 is what you want for 35's if you have the 5-speed, or 4.56 if you have the automatic.To answer maybe a little differently, 3.73 or 4.10 won't be best suited for 35s. So both axles will require regearing for best performance.