They are stock servos. With a decent enough servo saver setup, they are surprisingly reliable. I have never blown one in my MLST or MLST2 in two years of ownership. Full mod list is:
Drivetrain:
GPM alloy front and rear gearbox cases
3 Racing center gearbox case
Mip lightened and hardened top gear
Hot racing alloy center spool
Topcad toughened spur
3 racing alloy slipper setup
Hot racing hardened pinion
GPM titanium center diff joints
GPM alloy diff outdrives
GPM steel center shafts
Hot racing Lightweight diff posi locking plate in rear diff
Monotuning lengthened dogbones (not presently fitted)
Alloy hexes
Chassis:
Integy X Evo carbon kit
3 racing chassis side rails
Integy carbon top plate
Integy wheely bar
Steering + suspension:
3 racing alloy steering setup
3 racing sway bar kit
Xspede 70mm alloy shocks with 25wt Trinity oil and standard Losi springs
Monotuning alloy 10mm wider track arms (not presently fitted)
3 Racing alloy steering knuckles
3 racing alloy c-hubs
GPM alloy shock towers
Atomic titanium steering link
Atomic titanium steering tie rods
Power system:
Wraith 7k motor
Quark Pro car 33a speedo
TP 2000mah 7.4v lipo
Deans connectors
Miscellaneous:
Hot racing hub adapters for running 2.2 rims (not presently fitted)
GPM alloy body posts
New Era wing mount
New Era wing
Any info you need should be in there.
Wheelnut, there is no way this truck is heavy enough to bend any of the aluminium parts fitted to it. Not even at the 50mph it is capable of with a 3s lipo and the 2.2s on the stock gearing. Maxx size trucks are a different matter, RPM is fine for bashing but the flex they have annoys me to the extent I don't run them on anything that is not a pure bash truck. As much as I enjoy variable suspension and steering geometry i like my truck to handle the same most of the time.