[4L60E] - Replace Valve Body Without Removing Transmission?

[Jrgunn5150]

I would highly recommend a .500 boost valve while you're there then

I always did them with every shift kit, not a bad idea at all.

 

[beardeddummy]

Cheap insurance for a known weak point

 

[The Blue Dragon]

Just a quick follow up :

Ended up having a local transmission place install it. They charged me $300 out the door. P1870 code has not come back since.