Can you tow a Chevy blazer 1990 S10 4x4 with dolly?

Yes, you can tow a 1990 Chevy Blazer S10 4x4 with a dolly. A dolly supports the two rear wheels, leaving the front wheels on the ground for steering. This is a common and generally safe method for towing a vehicle with a relatively light weight, like the S10 Blazer.

However, always check your towing vehicle's owner's manual to ensure it's capable of towing the weight of the Blazer and dolly combined. The weight of the Blazer itself plus the dolly's weight will need to fall within your towing vehicle's capacity. Also ensure your dolly is rated for the weight of the Blazer. Pay attention to any specific recommendations the dolly manufacturer may have.