THIS UPDATE FROM POST 36 for people who dont want to read through all the crap
You probably should have mentioned this earlier. Cause this is the first time I am hearing about this. When throw out bearing isnt working correctly the clutch wont either. If the clutch doesnt disengage correctly the trans will have no chance of shifting correctly. and reverse will be first gear to grind. Even non certified techs know this. Now you REALLY look stupid here. First it was cables and now the brand new bearing... WOW just WOW you are an idiot....

following is origianl text:
I will keep my side as short as possible.
This transmission was worse condition than any I have seen. Normally I would recommend finding a better core to start with but that is really no longer an option, The last two people on here looking for 2g AWD transmission spent months . initial estimate to do a build on the transmission was 1100-1200. this estimate was 300 labor and the rest were parts. This estimate was done before any gear sets or center diff was torn apart. He said go a head and built it. After everything was disassembled I found the whole driven gearset useless. this alone was addition 500 in parts. Then the center diff hat was found to be toast. thats another 175 in parts. Then the aluminum third member was also found to be unusable from all the grinding that was going on. another 150 at dealer. So in order to keep the build 1500 I had to include from my parts stash well over 300 worth in parts. The labor for every trans built is flat 300. some take 3 hours, some take a maybe double that. this trans took 12 labor hours to build.
The goal of this car was 550whp weekend car. Pretty much same power level yellow car has. differences will be yellow car weighs 2600lbs, spins 28lb 23" tall tire and uses ultra soft engaging titlon carbon carbon twin. This 2g will weigh over 3000, spin heavy 24.5 tall tires and use the ultra harsh engaging ceramic twin clutch. yellow car transmissions (four broken) lasted about 2000 miles or for me about nine months. I explained to Orlando its not wise to spend money on a dsm trans as the life is very short at his intended HP levels. I explain this because this is what goes through my head when building a transmission. how long will it last and how much money will be wasted when gears let go. I try my hardest to keep build as cheap as possible. In the end the gears are just too small to handle the power we would like to throw at them.
When trans was first installed in the car Orlando called calm but you could tell he was very upset the trans was not working in 1/3/5. I calmly explained to relax. its impossible for the problem to be in the tranny. This problem is quite common a shifter cable issue. I told him the cables break and they flex trying to push into gear. also told him to check adjustments. He calls back the next day with same frustration. "there are no adjustments on 2g cables" At this point I know I am dealing with a mechanic that is not too bright. I again assured the cables are the problem. That was last I heard from him till he called and asked that I give him 300 dollars back because he had to drop tranny and fix my work. I told him that no trans shop would do that. I would have been happy to correct reverse issue had you contacted me after you got cables and found it still had an issue with reverse. but he didnt contact me he decided to work on it himself then beg I pay him for his labor time to work on his car.
end of part 1