Will a transfer case from 94 Chevy Suburban fit 01 silverado 2500 hd 6.0 4 speed auto?
No, a transfer case from a 1994 Chevy Suburban will almost certainly not fit a 2001 Silverado 2500HD with a 6.0L and 4-speed automatic. While both are Chevy trucks, the transfer case designs changed significantly between those model years and the drivetrain components are different. The bolt patterns, output shaft sizes, and even the overall case dimensions are likely incompatible.