Get the low profile servo instead and save some weight: Savox SC-1251MG Black
I like a plastic ball diff and plastic dogbones front and rear, saves weight and is so much easier for me to drive. Front tires last longer too, especially on the outdoor track I race on. Lighter drivetrain makes the throttle more snappy.
The TC6.2 DCV mod replaces the Average Joe's Losi mod, and it sure sounds like a good idea if you run a spool.
I use the Kimbrough servo #201
Make sure you get some spare outer hinge pins #3878 , Screw with Shoulder # 3875 and the block carrier bushings #3874. If you crunch a front corner it'll yard sale those small parts all over the track.
Hobbyking has some new shocks under the Trackstar name that look very promising.
http://www.hobbyking.com/hobbyking/s...2_S160323.html
Tc3 foam bumper and NTC3 wide plastic bumper help protect the front end:
http://www3.towerhobbies.com/cgi-bin/wti0001p?&I=LXNZ69
http://www3.towerhobbies.com/cgi-bin...?&I=LXBLY1&P=7