the_goat_man
Registered Member
i have a 700r4 that the case was broke on i had the trans shop swap it in to a new case now i do not have reverse. wtf my buddy pulled it a part and it worked but as soon as i put it in drive no reverse
CK5
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no reverse 700r4
- Thread starter the_goat_man
- Start date
If the valve body from the case that was cracked was used,maybe THAT had a crack too??..
I have an 85 700R4 in my Suburban that supposedly loses reverse after it gets driven 15+ miles,then returns when it cools off..also wont go into or stay in overdrive..I haven't messed with the truck yet,but I plan to either replace or rebuild the tranny..IF I ever find the cash to put it on the road,before it rots away...I am not liking the fact a used tranny that "might" be good,costs as much as I paid for the truck,and so does registering it..
..given the poor reputation the 700R4 has,I am tempted to put a TH400 in it instead..but dont feel like having to do all the swapping involved..kinda wish I had found one with a manual tranny now..
I have an 85 700R4 in my Suburban that supposedly loses reverse after it gets driven 15+ miles,then returns when it cools off..also wont go into or stay in overdrive..I haven't messed with the truck yet,but I plan to either replace or rebuild the tranny..IF I ever find the cash to put it on the road,before it rots away...I am not liking the fact a used tranny that "might" be good,costs as much as I paid for the truck,and so does registering it..
..given the poor reputation the 700R4 has,I am tempted to put a TH400 in it instead..but dont feel like having to do all the swapping involved..kinda wish I had found one with a manual tranny now..
The cases were changed in 1987 and the passage cast into the case for reverse is not the same. There is a possibility you have the wrong case for your valve body and internals. Of course there are a lot of other things that could be wrong from misadjusted or broken internal linkage, to a cut lip seal or sealing ring, to a loose bolt or plate on the valve body that covers the reverse circuit.
