Yeah, fortunetly it actually works fine, that AX4S really gave me some headaches LOL.
Well, when i rebult i used the "Transtec" AX4s seals kit, that kit includes all the necessary O-Rings, pan gaskets, servo gaskets and orings, new orings for the pistons (i only use the oring of the reverse piston because my pistons were not the oring interchangeable type), also it has the valve body gaskets, and all new stuff like the plastic balls, the nylon filters that goes inside valve body.
Other things that i replaced were the pistons, the transtec kit comes with the "LIP WIZARD" its a thin plastic disc that you can use for putting on the pistons in their place, its very useful for not damaging the seals of the pistons. Search youtube for a demo-video.
Also if you going to open it, i recommend to change ALL the nedle bearings, the kit coast me aprox 60 USD and change all the plastic washers, all the washers coast me aprox 50 USD.
Well, the necessary thing its the OD Band, i get both (FORD OEM) for 100 USD aprox, in my local transmission suplier.
I also recommend to change all discs, at least the friction ones, because they comes in "packages" inside the drums and it goes "metal disc-Friction disc-metal disc-friction disc" the metal disc in my case were damaged because the tranny fails in higway and i continue driving it to home, but normally it doesn't have damage, just the friction ones should have a little damage.
Each kit (because is one kit of metal disc and one of friction disks) coast aprox 70 USD.
And well you should replace all that you see damaged, in my case, the planetary gearset were damaged because of a broken retainer of the low servo, so i had to change the planetary gearset that coats almost 100 USD or more.
Last thing i could say if that if you could get a remanufacutred valve body, you should change it, it will save you from much problems, in my case, i replace it because the sonnax individual valves (Boost vale for example) coast aprox 70 USD, and all the valve body with new actuators seals and everything, just coast me 120 USD, so by that price i preferred the entire valve body.
PS: If you want some manuals, i have bought the "ATSG Rebuild manual for the AXOD & AXOD-e" basically its the same that the AX4S but with the "Servo kind" speed sensor, and the ax4s has a "hall effect" output sensor, but that is'nt the speed sensor the ECU or PCM takes the speed from the ABS sensors (trust me i unplugged the output sensor and the tranny works just a little hard but indicates properly the speedometer), so if you want it send me an email and i will respond you with the PDF file of the manual.
My email is:
platae@live.com.mx
i forgot to take many photos of the procces, that should be really useful for a DIY rebuild AX4S post, but well, its hard to take photos with oiled hands. But the rebuild process is not so hard as it apper, its very easy compared to the process of puting the tranny again in its place LOL,
Greetings