K021 Instructions v1.0
Bag D
Page 28
D9)
Some Team drivers put a small amount of AE Stealth lube (not included) on the
teeth of their diff gear to lubricate the transmission. Others do not, saying the
plastic gears are more free without lube. Pay your money and take your pick.
Carefully put the two halves of the
transmission together. Make sure
everything rotates
very
smoothly. The
bearings may be a bit stiff, but they will
break in quickly. A binding or “hitch” is
bad, and should be repaired now, while
it’s easy to do. Later is hard… A
common cause of binding or hitch is a
slight imperfection in one of the gear
teeth, or a particle of dirt on a gear. Wipe
excess grease from the outside of the
case.
You may notice some side-to-side movement of the diff. This is OK. Some
drivers shim the diff into the center, others do not. The small movement seems
to have no effect on performance or service life and helps ensure minimal side
loading of the outdrive bearings.
D10) Install the 4-40 X 3/8” cap head bolt (6001) in the lower corner (short arrow) and
the 4-40 X 1/2” button head bolt (6043) in the rear center of the transmission
(long arrow). Leave them finger tight until instruction D12. Make sure the head
of the 3/8” cap head bolt is fully down in its boss and no part of the bolt protrudes
from the transmission case on either side so the transmission will fit into its “box”
at the chassis rear. The hole (shortest arrow) is to make bearing removal easy.
