if you want to know how it will ride in the front it will be the exact same as it is now just higher because ifs lifts dont change springs it just brings everything down .my buddy used rancho leafs and they worked great. staying will 32 will be alot better on your drive train especially if you have a 4 cylender but if your going to gear it a bit, bigger tires means more axle clearance and since most trucks on the trails have at least 33 digging ruts your little 32s isnt going to help you diffs from sinking to china.
my advice go with the 4 and crank the tarsion bars down a little bit to a 3 inch,run the 3s in the back that way if you deside a 3s not big enuf you can crank the torsion bars in the front and add a shackle to the back and you will be up to a 4 .also wen you figure out ifs is **** it will be alot esyer to sell a 4 inch lift than a three
When it comes to IFS, it's all the same. It really doesn't mater what system you go with your going to pay way to much and get way to little. Pick a used lift up. You wont kick your own ass later so badly.