Cost to rebuild tranny 97' Z71????

[kxmotox247]

Hey...
What's a ballpark figure on the cost to pull, rebuild and replace my automatic transmission in my 1997' Z71?
My tranny went out after only 92,000 miles. This truck has been taken care of too. No serious 4' wheelin either. I've had the fluid flushed once.
Supposedly, I blew the planetary gearing. Driving home on friday, the truck's motor reved and it felt like the tranny slipped. Then the noise started. It sounded like a supercharger whine. I only drove the truck for 2 miles from the time I noticed there might be a problem. Later that night, when I tried to move it around, i had no reverse. This is pissing me off. I've been meticulous about taking care of this truck and then this.

What is a reasonable price to pay to have the work done? I want a warranty.