tranny is starting to slip, would a bts modified valve body fix this or is that more of a preventative measure instead of a bandaid

 

Not a fix. If you're actually overpowering the holding capability of any of the clutches in the transmission, then it's time for a rebuild.

Contrary to popular internetz forum belief, an aftermarket or modified valve body does not make the transmission stronger in any regard.

 

hmm interesting, thanks for the insight

 

How many miles on the trans? I have 285,000 miles on mine and it was starting to have minor slipping issues. I installed a John Wood Valve body 6,000 miles ago, and right away I noticed a huge difference! It almost felt like a whole new truck, I still have a very minor slip even after the install but its got miles on it. I saw lower trans temps also after doing the VB swap. The shifts on the JW are not too firm and fast, especially on WOT runs! I know the JWVB clay has, if you go with a BTS trans I believe he will credit the VB ad the install time. If you want to go through with the swap I have my stocker I can send you for the core if you dont want to down the truck. I see it as preventative but also a bandaid in my case since I plan on a re-build this summer.

 

I have a BTS valvebody and I like it. It shifts great and no problems. Will it help an worn Trans? Mabe mabe not. If you wind up needing a Trans later then you can put the valvebody in the new Trans. It definatly makes the stock Trans shift better. It would be a good idea to do a Trans flush at the same time.