HELP 700r4

[TheSunDanceKid]

alight ive had it with my roommates 1986 k5 with a 305 700r4 hopefully some one could help me out
first it wouldnt shift to 3rd gear we found out it was due to a falty TV cable it was melted so we changed it out with a new one got that all replaced and at first it wouldnt adjust the valve was sticking so we got it free some debre was making it stick got all that fixed also noticed the valve body spring (orange one) was broken replaced that also took a while to find one but got everything back together
now it shifts up fine goes threw all gears good with no hesitation
but as soon as you get into 3rd or 4th and you let off the throttle at all and accelerate again it will just rev like its in nuetral but once its back in
1st you can acceletrate again to what ever speed so basicly its not down shifting after 3rd gear and wont upshift intill its in 1st again

ive adjusted the tv cable twice now and its still doing it she only works like a 1/4 mile away so it works to get there and back lol inless you need it to down shift

by the way i have taken the gov out the gear looks fine no broken grooves or anything did notice it had 2 different springs on it though one was a soft spring and the other was a little stiffer