ok i had it serviced last week everything was good whole thing was flushed new filter and so on, now just today the box started to make a rumbleing sound like it was low on oil but the car drove fine regardless i checked the fluid it was full. i also noticed the hotter the car got the more noticable it was the whole car started to shudder once it was in gear but engine idled fine and the shudder would dissapear after it got passed 2500rpm but the rumble noise was still there. does anybody have any idea to the cause, i know i should just convert to a manual but i dont plan on haveing the car after christmas, so i need to temporaraly fix it so it'll pass a roadie and a test drive to the potential buyer.

anybody it's getting worse

could be universal joints.

check the bit of the tailshaft that goes into the transmission and see if its worn on one side if it is get a new one cause itll screw the bush in the extension housing

nar it's none of those i put new uni joints in when i got the car. i found one small leak but it's only wet but not dripping, i cleaned it and sat it in the shed overnight after i took it for a run to get it hot ive checked it this morning and there isnt any oil on the ground well not gbox oil just some engine oil from the front of the tapper leaking. im starting to consider getting a manual conversion the local wreckers sells a complete conversion for $550 but thats without any warenty.