Does anyone know what parts I will need (I have the old slash not the new lcg one)
This is the list to convert it to the rally chassis, but if you also want it to be the full on rally you also need the bumpers, body posts, rally wheels and tires and rally body.
7422 - Chassis
7423 - Nerf Bars
7424 - Receiver box
7426 - Battery Clip, Strap, And Rear Retainer.
7429 - Rear Bulkhead
7430 - Front Bulkhead
7438 - Steering Linkage
7460 - Motor mount
7477 - Cover, Gear/ Wire Retainer
7490 - Motor Plate
Slash 4x4, Rusty VXL(project), Slash 2wd(project).