Having problems with 94 GC trany.

I bought a 94 grand cherokee with 165k. I did a very stupid thing which was not checking the trany fluid. About 9 months later it began slaming in and out of gear when stoping at lights. I checked the fluid and found that it was 3 qts. low. I was quoted $1500-$2500 to have it rebuilt and they said it was to complicated for me to even take out the trany myself to save some $. Is it really that hard or are they just trying to make more $?. I have done several trany swaps but nothing computer controled. I asked them about getting a used trany and they said it was difficult to get the right one and the computer might not recognize it. I need a cheap salution. Please help. :banghead:

Is it a 4.0 or 5.2?Either one is not that hard to take out if you have the right tools and equipment.As for the computer part,on a 5.2 the computer has nothing to do with it except for tcc and overdrive,on a 4.0,the computer doesn't do much,it just controls governor pressure in addition to tcc and overdrive.Either one has only 2 electrical connections on the trans itself and one is for the neutral safety/back-up light switch.Assuming its 4wd,the worst thing is that the t-case makes it a little more work but if you have done trans swaps before,you probably can handle this.

Like XJ said if you have done tranny swaps you should be able to handle this. There just trying yo bust your balls!!