Rear end

I have 35's but want to get a upgraded rear end first. I was looking for used Dana 44 but can't find any locally. I found some 8.8's one geared 3.73 and one 4.10. My stock gears now are 3.73 front and rear. If I get the 4.10 would I have to re gear the front axle? Or should I get the 3.73 rear end and re gear them later on?