I have a 1987 Chevrolet V10 with a 350 TBI and a 700r4, all stock besides the TV cable. It have a telescopic universal tv cable that I just cant get right. When it shifts proper I'm never getting WOT and my pedal gets stiff. Supposedly my trans was rebuilt. I had a new valve body installed by a reputable mechanic. I just want a stock cable or part number or something so that I can get this thing fixed, it's my daily driver and I cant afford to replace a transmission. 🤣 Any help is appreciated