Good choice of lift! Look forward to pics.
Driveshafts will go sooner at 3.5 than at 0 - but when that day comes is anyone's guess. Typically you get a little warning tho with vibrations, a torn boot or grease on the underside. You will need an exhaust crossover. Make sure to get a programmer for the bigger tires.
What gearing do you have? If 3.21 you will dislike life on 35s. Even if 3.73, look into regearing. Most folks run 4.56 or 4.88.
2014 JKR "Bob" - RK X Factor 2.5, Nitto Trail Grapplers 37x12.5x17, Auto, 5.13, Rock Hard Skids, PS HD Cross member, Artec Axle Armor F&R, Artec Rear LCA Mounts/Skids, Synergy Rear Axle Side Weld on TB Bracket, PSC Hydroassist