Has anyone ever used this 1870 valve with O-rings before? I think its fairly new maybe... it is suppose to convert your pulse style lock up to a On / Off style lock up. its not a Sonnax brand nor Transgo brand.... anyone use it before with a stock type tranny and a .490 boost valve? here is what they only write about it:

#1870V. 4L60E Code 1870 Fix. We have found this part to be bad on almost everyone we checked. This part always wears out 99% of the time and should be replaced on every rebuild. 1995 to 2000 Cost $18.00.

and the link to who sells it:
http://www.4l60-e.com/

 

Oh i forgot to mention that this valve installs inside the valve body....

 

I'm too ingnorant on the subject to make a knowledgeable comment. However, I plan on smartening myself up on the subject when I rebuild mine.

 

well you can always follow along to get more info as you go