suspension lift

‘18 JLU Sport.. Bought a 3.5-4” suspension lift. Bought 17x9 fuel vapors w 37/12.50r17 Ko2’s.. It’s an Automatic, 8 spd.. I know it is going to be sluggish. And my application / use is going to be strictly on road until warranty is up.. Do I NEED to regear? If so to what size? Do I NEED a beefy...

This is for my wife’s 2018 JLU Sport Automatic 8speed... So I bought a 3.5-4” lift for my wife’s JLU Sport..I just bought 17x9 Fuel Vapors & 37/12.50r17 BFG Ko2 A/Ts. My suspension lift should be in within two weeks, and my buddy and I are gonna slap that together, then I’m heading over to my...