My trans has been leaking for ever so i went and bought some uv dye and it saw that it was coming from the intermediate shaft im guessing it s the seal. I was wondering if this would be a hard job to do and Im having a hard time see reading this diagram (http://www.jimellissaabparts.com/showAssembly.aspx?ukey_assembly=407665&ukey_make=1032&ukey_model=14674&modelYear=1999&ukey_category=19612&ukey_driveLine=0&ukey_TrimLevel=0&ukey_modelRange=0&searchString=). I cant tell if there's inner and outer seals, and if there's anything else i should be replacing while its pulled out?