Originally posted by JDSfastGN
There are a few good ones out there, the vendors on here are a good starting point, PTS has a good kit, and CK also has a good kit that is very easy to install. I also like the bigger 200 3 speed servo. Art Carr kits are also very good IMO, I used to run one and it shifted very good for a stock trans with only a shift kit. I would stay away from B&M and Trans go etc....
I can tell you from experience,
the PTS kit and Transgo Reprogramming kit 200-4R HD are almost exactly identical.
Leave out the middle checkball on the valve body, and install a super heavy 4th accum spring, and you have turned a Transgo into a PTS.
I have bought, installed, and compared both. I have also compared the OLD TransGo kit and it is completely different.
I've compared the TCI and Art Carr. Art Carr is also similar to PTS/Transgo.
I have not used Chris's kit but have spoken to him in depth about 200-4R calibration and wouldn't hesitate to use his stuff. I use his hardened parts in mine.
My suggestions from experience.
You can use the Transgo, PTS, or AC with almost the exact same results.
I would avoid using the PTS .570 boost valve. Their spring seems to be good pressure wise, but some members here have had problems with the boost valve sticking. It's a little too big, and leaves paper thin metal at the edges of the sleeve.
I also would not shim the TV plunger spring, unless your stock one is very weak (in that case I would use a different spring...)Transgo SK or HD kit includes a new one...
I would personally use a less firm 4th accum setup, but it depends on what you want. Bang shifts to 4th.
The TransGo or Superior 4th accum spring setup like a stock GN works great.
If you have a fairly loose converter (stock GN or looser) you can get by OK with blocking the 1-2 accumulator.
If I were buying one today, it would be a CK, then next in line would be a Transgo. The TransGo includes the TV boost valves.
