I’m significantly increasing the horsepower on my 4wd Yukon and want to keep it 4wd. So, I need some advise on transfer cases. I have a 2003 Yukon with the 5.3L flex fuel motor, 4L60E, 3.73 positrac rearend, and NP 246 transfer case. So far I’ve converted to an e-fan, k&n intake, pacesetter 1 7/8” long tube headers and y-pipe, and all the components needed for a bigger cam. I’m going to be putting a Texas Speed Stage 4 5.3 Truck Cam 223/226 .600"/.600" 111 LSA with a Yank Truck Thruster Series 2600 torque converter, a built 4L65E, Magnaflow 15666 catback exhaust, TBSS intake conversion with 42 lb/hr injectors and 09 corvette TB. I don’t know exactly how much hp I’ll be producing but I’m fairly certain my stock transfer case won’t be able to handle it. Is there an upgrade kit I can get or do I need to swap it for a stronger one? If I need a stronger one, what should I get?