Hi guys, I'd have preferred not to have to write this, but... you know 
Situation:
Jackaroo drives, but only in low rpm's up to 1500 or so (aka 20-30km/h max), everything higher it feels like a slipping clutch (which I know it doesn't have, but that's how it feels, it just turns rpm up with no power distributed anymore, which, however, is done in low rpm regions).
Starting at probably around 1500 rpm it makes a totally "not nice sounding" squeaky noise - I attached an audio only file (about 12sec) and one with video to show the area it comes from (a lot shorter, but with visuals 
) - you can hear it clearly in the car and under the car in the auto-transm. area, but not, if standing in front of the Jackaroo with bonnet open, so it's most likely not the motor (at least a bit of luck?), just what is it?
I'm only a hobby mechanic and it just sounds "not nice at all", any help would be appreciated. We got a baby and need it to drive, don't want to wreck it completely by driving anymore right now.
Thanks in advance, wish there were relatively cheap mechanics at the Gold Coast, you know any? Or is somebody of you familiar with the 2000 3.5L Petrol 6VE1 w. 4L30E Auto Jackaroo and lives around here?
I guess a repeat: help! on that one.. maybe only auto trans fluid low?..
Thanks a lot, fingers crossed you guys can at least give some hints / maybe even know a local around here (upper Gold Coast near Movie World)
David