SCX10 C-hub pins can walk out slightly if they weren't seated flush. Loose pin shows up as steering slop before you'd ever spot it visually.
#SCX10 #RCMaintenance

TRX4M portals are grease-packed, not oil-filled. Weeping from the seals after a hard session is usually grease breaking down from heat, not a real leak.
#TRX4M #RCMaintenance

SCX24 dogbone driveshafts wear at the pin holes fast on 3S. A worn one clicks on acceleration well before it actually snaps.
#SCX24 #RCMaintenance

TRX4M front bumper mount is thin plastic, takes the first hit on any nose-down strike. Swap it for aluminum before it cracks, not after.
#TRX4M #RCMaintenance

SCX24 screws are JIS, not Phillips. A regular Phillips bit rounds the heads fast. A cheap JIS driver saves you from stripping half the chassis.
#SCX24 #RCMaintenance

A slow oil leak on an SCX10 shock isn't always a blown seal. Sometimes it's just the shaft o-ring drying out, needs a light coat of silicone grease. Check before ordering a new shock.
#SCX10 #RCMaintenance

TRX4M front C-hubs can bind against the chassis at full steering lock, feels like a busted servo but it's geometry. Turn the wheel slow by hand through full lock first.
#TRX4M #RCMaintenance

SCX24 battery tray is thin plastic, easy to crack the tabs by over-tightening the strap. Snug is enough, you don't need to compress the case.
#SCX24 #RCMaintenance