here is a list of stuff i found for the m03's and the m04m.

Differential
53267 - TA03 Ball Differential Set
53379 - Light Weight Diff. Balls

Parts:
53509 - HFC 0.6 Aluminium Pinion (20T)
53348 - M03 Ball Bearing Set
53390 - M03 Hollow Carbon Gear Shaft
53597 - M-Chassis Universal Shaft Set

53527 - 3x32mm Titanium Turnbuckles
53345 - M03 Toe-In Rear Upright

49198 - TRF Damper Set (Blue/4pcs.)
53488 - Adjustable Ball Connectors (*2 required for the mini)

TM3020 - tech racing aluminium king pin set
TM3060 - Tech racing alloy turnbuckle and tie rod set
53238 - Tamiya quick release battery holder
53333 - Touring Car tuned Spring Set (Short)
TL- 006V2BU - yeah racing blue alloy front upright (knuckles)
53389 - Tamiya mo4 aluminium heat sink

TA05 Tamiya 5mm blue alloy wheel hex adaptors
53341 - Tamiya mini cooper re-enforced rims
TA51236 -mini suzuki body
TA53068 - tamiya sports tuned motor
TA53204 – mini tyre inserts hard