Hi All,

I've 20 series 3.5L V6 Alphard. I've got a what my normal garage think is a transmission issue, possibly with the transport box. They've recommended finding a transmission specialist in Birmingham to help diagnose.
The car wouldn't pull off in drive, juddered heavily and then appears stuck in 4WD mode. It now drives but there is a 'dull belt' sounding noise at slow speeds. Im based in Birmingham and have already tried the following places; Driver Transmissions, Neil Smith Automatic Transmissions and Toyota main dealer.
 

Any suggestions would be greatly appreciated please.
Thanks, Mark 

look on the social groups for ben hau, he seems fairly knowledgable on alphards and I think hes based in Brummy too. hope you get sorted