700r4 od slips help!

[techrondon]

1987 700r4,,,now wont go when taking off in"od"..goes ok in drive then up to 50+mph shift into od and it goes,,,when speed drops it shifts back and forth,,slowing down shift into drive and get back up to speed and shift to od it goes ok again..r,1,2,d work fine and strong.!..changed fluid and filter and no help,,fluid looked good..is "od" a seperate part??..dont know much about these any any help would be great..thank you ..

 

[techrondon]

oh yeh,,,not an original vette tranny...

 

[silver 80]

The 700R4 is next on my list, from what I have heard when installing this trany in a shark is the od is just that OD, you should start in D and when you get up to speed you shift it into ODand when you drop back down you shift it back to D.
Don't know if this correct but that's just what I have heard. something about burning you OD unit up. Wasn't it first installed in computer base vehicles?
tom

 

[page62]

I usually don't shift into OD until 65 mph. The worst thing you can do is lug the car along in OD at 45 mph -- it tears up the tranny real bad.

Find a tranny shop you can trust, and have the problem diagnosed and fixed before it gets real expensive!

Because these cars don't have computers, we do indeed have to treat OD like a manual gear -- shifting in as we get up to speed, and then out again as we slow down.