Every fast truck ever has run a stock transfercase.
Every single one.
Our only weak links are the tranny,the intakes,the rearend,the block and crank,fuel system and delivery,aerodynamics,heads,pistons,rods,ignition system,engine management,ergonomics,parts availability,aftermarket support,rust,turbo/DP,boost control,.limited space,.handling,and such
Like frontend lift.You gotta fix that too (autoaddictions)
Fix all those shortcomings and you'll have a badass truck.
Other than that,yeah,look for a super transfercase.