66 K 271 Transmission

I brought a 65 GT A code F/B, awhile back, and am going thur the whole car. (Been in storage 3 yrs) And I just discovered the 4-sp transmission is not orginal. It belong's to a 66 K car. If someone out there has this car and wants his transmission, let me know. It's (HEH BX, 6R07K165xxx) The last three numbers are delete, you give the numbers, I'll give the answer! Otherwise, it is not for sale at this time!