GM Tremec TKX 5 speed transmission

I have a gm tremec tkx 5 speed transmission with a. 68 overdrive with less than 5000 miles. I pulled it out of a 1970 z 28 camaro and put the numbers matching muncie m 22 back in it when I sold it. $2300. New they are $2900 plus tax about $260 Call or text 918-724-8626, no emails