I Guess my range rover could have had replaced bolts on the starter, but the 5/16 did fit. Another problem is actually accessing the bolts because it is hard to get leverage with an allen key (especially the top bolt), thats why i would consider using an extension bar or two. I ended up having...

Just for future reference the allen key is 5/16. You usually have to attach it to a socket extension bar to get access.

Seems the high-low lever did get knocked, it just didnt want to engage again. So i got a mate to give me a tow down the road a bit and that seems to have allowed it to go in to gear again. Thanks for the advice.

G'day all I recently purchased a manual 86 range rover with 190,000 k's on it (118,000 miles). While i was reversing it into the garage i suddenly lost all power to the wheels. The engine seems to be running fine and the gears seem to go in ok it just wont drive. It might be the clutch but...