depends how much of a lift and if you want to "do it right" or not. You can do a ****ty block lift for ~$100, a spindle lift for ~$300 + another ~$400 for shocks, and a full suspension lift kit will run you ~$1500. All prices don't include tires, wheels, etc which vary in cost quite a bit.
Owner of Southern Style Trucks - Houston, Texas.
Let me know if you need any after market accessories for your vehicle of any make/model and I will let you know if I can get it. We're also a diesel performance and repair facility.