rodeorider replied:

Sam, is it a 2.8 or 3 litre?
If a 2.8 litre, you have to remove the battery, then the air cond compressor, this itself is difficult, and then lay it to the side with out disconnection of the hoses..the belt tension for the alternator is under neath, so you will be working underneath and above to remove the alternator, also you have to disconnect the vaccuum pump at the rear of the alternator, it is a tight fit and the bolts/nuts are not at all friendly to access, have done mine twice, and am a mechanic by trade, and its a pain in the proverbial to get it out, if you are not mechanical by nature, go get your self an obliging auto electrician, as yours sounds like a lazy p@#%*!
Andrew.