A lot of people ask me about my maintenance routine on my XRAY X4 cars. What to maintain, how & when. See below:
Hub bearings - add oil and replace when gritty/notchy.
Diff and solid axle bearings, same as above.
Re-grease CVD and ECS driveshafts. Replace them altogether or just the couplings/case when excessive play has developed.
How to:
Rebuild shocks before every race day. Rebuild differential for every few race days. Replace shock o-rings and membranes every few races.
How to:
Check wear on the drive belt, center pulley, o-ring/clip as well as center pulley bearings. Replace when worn.
If running on asphalt, especially with a carbon chassis, replace when chassis has become too worn/thin or when warped.
Check upper and lower arms for flatness after a crash.
Bodyshell! Repair or replace when worn. Don't overlook this. Same for the rear wing. Aero matters. Pay extra attention to cracks in the highlighted areas of the picture below.