An interesting tidbit I learned recently. The K case does not have to have a "K" cast on it, to have the necessary upgrades. What matters is the dust cover bolts. Are they sheet metal screws (not a K case) or are there 6 large machine screws (K case)? I am told this is the only universal qualifier.
On a side note I have priced TV cables at around $30-40 recently.
In reference to earlier posts, I have done a lot of research regarding the "lowly" 700 of late and found the following:
The primary weak points of 700's are the 3-4 clutch pack.
sprag gears (early units)
input shafts
Tv cable adjustment is critical and accounts for most failures. Abuse is likely the close second.
Don’t forget about TC lockup, it is crucial, especially in early models.
There are many other parts that can and will brake if abused or put under excessive strain. Race built transmissions may not be appropriate for a relatively weak, low revving diesel.
I talked to several manufacturers and builders, by both email and phone. The consensus is that neither red nor blue frictions are ideal for my application. With a lot of time spent on this, I decided to go with factory style frictions in low/reverse and the Raybestos "Z-pack" in 3-4. The high friction tan in the low/reverse is also an option. Additionally, we are up grading the internal components that can be swapped without too much hassle.
My case is an '83 K case with 27 spline input and other small junk on the inside. I will be leaving it 27 spline. Why? Well, I have the case and it is in good shape (no direct cost). Diesel cases, especially 85 and up, are hard to find (valve bodies are not necessarily interchangeable). I don't think my fire breathing monster will have the torque to break it once built. I won't be drag racing or rock crawling.
The above observations are opinions expressed in there relevant contexts. The fitness of a transmission in your application may vary. The term "fire breathing monster" is used euphemistically, even with a turbo, Dana 60s, 4.10s, lockers, and a twin sticked np205, I doubt I will be having problems. If it breaks, I will let you guys know.
Attached is a picture of my dust cover (pre build) I will try to find a better one.
Added. I had to go out and take one. Hope you guys appreciate all my hard work!