i have an 87 gta with the 350 ho motor and im having problems with the trans shifting down from 2nd to first. At 20mph if i stomp the gas it should shift back down into first, i believe, but it doesn't it stays in 2nd. other than that it shifts fine. ive adjusted the cable but it didn't help it was adjusted so tight before the tv cable was limiting the wot but i still have the same problem after i adjusted it please help

 

Did it ever do that , These shifts are controled by the govenor at full throttle , You may be able to get there manually which contrary to popular belief will not hurt anything,

 

i don't know i just got the car from my grandad and i've only owned one car with a v8 and it was a 5.8 ford f150 and i just remember at 30 i clould floor it and it would kick down into 1 and come alive. I did how ever noticed yesterday at 15 miles an hour it would shift down into first. that just doesn't seem right to me and i could be wrong like i said the car runs and shifts up fine thanks for the reply i really appreaciate it

 

Like was mentioned before, it depends on the tranny governer (controls upshift and downshift points based on transmission speed), and therefore gearing of the car. A pickup with a 2.73 rear end isn't gonna be turning as much rpm at 20mph as a F-body with a 3.42 or whatever rear end. To add to this, the 700R4 has a termendously high ratio (low speed, high rpm) 3.06 to 1 first gear. I know my car will not hit first at much over 15 mph, I'm running a 3.73 rear end at first gear at 20mph is like 3700rpm. One the oposite end of things, I've got a 99 Grand Am with a 3.08 final drive and a much lower ratio first gear that'll shift down to first at anything under 38mph, and pull first gear to 50mph. (It does have a modded PCM) So each car will be different. If the TV cable is properly adjusted, you'll get the maximum downshift speed thats reasonable.