theres a couple of diffs here:
http://www.ebay.co.uk/itm/LRP-SHARK-...item3cbf9c86c9
but make sure you ask what condition the outdrives are like or you could be wasting your money if you need to spend out more on new outdrives,
you probably started buying parts already but i was going to put a shark on ebay next week for £70 with free postage, short wheel base one but it had ball diffs and all the arms and the shocks, etc, a servo and brushed system is in it too,
http://www.flickr.com/photos/7626931...37395380/show/