fluid type for A-518

just to give you a better understanding, back in august i though all i did was blow the front seal out of the transmission, so i asked around and was told this shop is the best in town, so i made an appointment for a front seal replacement and to get my overdrive wired to a switch.Well i bring the truck to them and leave it and the next day they call me and say sorry to bring bad news but this transmission is burnt up and needs to be re-built, and its going to cost 23 to 24 hundred bucks, but you will get all new parts including converter and a 2 year warranty, i need my truck.... so i said ok re-build it.
Three days later they were done with it and called me and i went and paid them 2389.00 bucks cash for the re-build, a day or two later im driving to work and everytime i go over any kind of bump i can feel something clunking and thumping against the floor boards, it took me awhile but i discovered it was the bottom transmission mounts, so i replaced the bottom transmission mounts and ever since i replaced them, the truck has had a terrible vibration while at a stand still and while driving and the transmission is also making a whineing noise.
So i bring it back to the transmission shop on monday, and he calls me back on tuesday and says the reason its vibrating is cause its not firing on all 8 cylinders wich i call bs its got brand new plugs plug wires cap and rotor and coil. I said ok what about the noise its making? he said its your rear axle, i said really? then how come when i put the transfer case in nuetral and put the transmission in drive i get the same exact noise? how could it be the rear axle when its at a stand still? he says really? well i have a few minutes ill go take a look at it and call you back, so he calls me back 20 minutes later and says ya there is deffanitly something going on with it, he says tommarrow ill pull it up on a rack and check it out, and ill call you and let you know what i find.....
Well here it is 2 days later and no call back from him... any advice on how to handle this guy and situation?