Will a transmission from a 1998 Chevy blazer 4x4 fit a 1989 Chevy 1500 4x4 pickup with a 305 engine?

A transmission from a 1998 Chevy Blazer 4x4 is unlikely to fit directly into a 1989 Chevy 1500 4x4 pickup with a 305 engine due to differences in design, mounting points, and electronic controls. The 1998 Blazer likely uses a more modern transmission that may not be compatible with the older truck's drivetrain and control systems. However, with significant modifications, it might be possible to make them work together, but this would require extensive custom fabrication and adaptation.