I have '94 integra the tranny doesnt engage sometimes good fluid no leaks anywhere i just dont know what the problem is.  I'm trying to save a little money just had a baby.  Car runs like a champ just tranny acts funny sometime. Help please.  

the gears are proabably worn way down.  if that is the problem, which i cant be certain if it is, you will need a new tranny.  buying a new tranny would be cheaper than rebuilding your current one.  go to jdmsource.com and you should be able to find an used one cheap.  first take your integra to a very knowledgeable transmission specialist and have the problem diagnosed professionally.  

i kind of figured that i saw a couple online last night and im thinking about getting one.  how hard is it to swap b18b for b18c they should fit almost exactly the same and my auto tranny should work no fine correct?  

sorry tranny should work with no problems is what i meant