only Reverse gear slipping on auto

[Steven M]

VT V6 auto box -This has started happening in the last 2 wks. reverse gear is slipping badly, you cannot even put your foot down a little or it will slip even on a flat surface, but strangely enough if it is in 'D,3,2,1 there is no problem at all. doesn't slip when going forward, gear changes are nice and smooth, no clunky noises or anything. Does anyone have any ideas. No fault codes come up either.

Cheers

Stevo

[PRH]

My guess would be buggered reverse clutches,if it drives ok forward and not in reverse sounds like an expensive fix coz they are the first set installed in the trans from what i'm told
Phillip