Youlls need
Fuel
glow plug igniter charger
extra spur gear just because its always good to have one
after run oil ( i prefer 3n1 oil because its a great oil for nitro engines and it really is good
for anything mechanical)
air filter oil
always good to have tool set ( not something you HAVE to have but always nice to have
quality hobby tools)
battery hump pack is essential in my opinion. AA's can be expensive buying them on occasion.
For me, the truck came with the motor mount, back plate, and some other parts that were already thread locked so i think 2011 savages are taken care of in that issue savages have had in the past.
Also, i personally have not had to shim my diff's I've driven over 1 and a half gallons of fuel with no gear issues what so ever. But its good to check.
video i did on my opinions on the savage.
[ame="http://www.youtube.com/watch?v=Wt7WQMnusMI"]
HPI Savage X 4.6 Big Block Review - YouTube[/ame]
heres what it comes with [ame="http://www.youtube.com/watch?v=1907giEMcwU&feature=related"]Savage X 4.6 Big Block Review Part 2 - YouTube[/ame]