rear diff mounting bush and vibration questions

Hello all!
How much would i be looking to fork out for a rear diff mounting bush replacement on my 1998 freelander 1.8 exi?Also i have noticed while driving on the motorway/bypass if i am around the 70 mph mark the steering wheel starts to vibrate a little more than i would expect it too.Is this normal and if not what could be the problem?
Thanks

get yer front wheels balanced to start with

about £42.99 plus £9.00 postage!

ffs - dont anyone bother to look fur emselves nowadays?

Non genuine can be picked up for around £20 but I'd go for a genuine or OEM part.

Cheers

Blippie

Well said Blippie, I bought what a non dealer L/R repair shop told me was OEM for £14, about 2 yrs ago, it lasted 6 weeks!!!