I have a transgo shift kit in my 700 and it works fine except my overdrive. it rarely works, most times if i'm on the highway and shift into od my rpms will slowly drop to idle, then if i give it gas again it will rev back up to third. then other times od will work great, it will shift crisply and hold strong even at WOT. then it'll go away again. What's the deal??

P.S. I have 4.10 gears so I like OD a lot.

 

anybody?

 

???