yes!!! u can but there are some riskif it is over about 2 or 3 inches ure gunna want to waterproof
u can do this very easiy
step 1:go to your local hardware store i go to ace and buy a can of plasti dip
step 2:take your servos off of your truck and dip them into thew can u should only cover about an inch of the wire
step 3: hang them up to dry for about 45 mins
step 4: put one more caot on them and let them dry
step 5: cut the plasti dip away from the turny part of the servo
step 6: get a paint brush and put a light cooat of pasti dip on ure reciever box and battery box but make sure u connect your wire and have brand new batteries in it becuase once u do this it is sealed for good if u want to open the reciever or battery box u will have to cut the plasti dip and do it over again
hope this helps