Can you put a 2002 Chevy truck silverado transmission into 1997 Tahoe?

No, you can't directly swap a 2002 Silverado transmission into a 1997 Tahoe. While both are GM trucks and may seem similar, there are significant differences in the transmissions themselves and their interfaces with the engine and transfer case (if applicable). The bolt patterns, input shaft dimensions, output shaft dimensions, and even the electronic controls (if applicable) are likely incompatible. You'd be facing a major adaptation project, requiring significant custom fabrication and potentially electrical rewiring, which is usually not practical or cost-effective. It's far easier and cheaper to find a suitable transmission for the 1997 Tahoe.