crank pulley wobble.
 

Alright humor me with another question. I noticed the crankshaft pulley has a wobble. The center part where the bolt is spins true its the outer part where the belt rides that wobbles, I assume the rubber part between the two pieces is to blame. Its enough of a wobble at idle that the belt walks side to side on the closest idler pulley. This wobble seems most prominent at idle and is not noticeable at higher revs. The replacement pulley from AB is $670! So this is not an option. Maybe they all wobble? Is this a big problem?

Buy a used one, it should not wobble.
Also check with Trevor at RovahFarm - Parts for Land Rover Cars and Accessories - Land Rover Discovery, Range Rover, LR3, LR2, Land Rover Defender, Freelander and Land Rover Series, and of course e-bay and Google.

Thanks, I guess used is the way to go, just hope I dont end up with one worse then mine.

If you research it I bet you will find others from other cars that fit and are much much cheaper.

Contact Paul Grant, I know he just parted a truck with a bad block. I saw it last Tuesday when I was there getting parts. He won't sell you junk.

Thanks for the tip. I just ordered one from Pt Schram, great guy to deal with!