I have a 727 that I bought as a very low mileage pull out. It had been rebuilt and put into a truck and then sold. The new owner put his own drivetrain in the truck and sold me the trans. I opened it and installed a trans go shift kit. Used a lokar kickdown cable and bolted it behind a 5.9 magnum in my 1970 dart.
The trans worked perfect for the first ~20 miles of driving around the neighborhood. Upshifted nice and firm, kickdown worked at WOT, etc. I was out driving it last weekend and came up to a 4 way stop sign and when I hit the throttle to drive off the car would barely move. I manually pulled it into low and it downshifted and took off. If I put the shifter I to low and them move it to drive, it'll shift like it should. But it will NOT downshift by itself after stopped. It will still automatically downshift when i go WOT though. Trans fluid is still clean, and full. No odd noises and it shifts great after selecting 1st. Kickdown cable is properly adjusted.
What could have gone wrong? Is it still safe to drive? I basically have a manual valve body now.
The trans worked perfect for the first ~20 miles of driving around the neighborhood. Upshifted nice and firm, kickdown worked at WOT, etc. I was out driving it last weekend and came up to a 4 way stop sign and when I hit the throttle to drive off the car would barely move. I manually pulled it into low and it downshifted and took off. If I put the shifter I to low and them move it to drive, it'll shift like it should. But it will NOT downshift by itself after stopped. It will still automatically downshift when i go WOT though. Trans fluid is still clean, and full. No odd noises and it shifts great after selecting 1st. Kickdown cable is properly adjusted.
What could have gone wrong? Is it still safe to drive? I basically have a manual valve body now.