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STEP 1
Place the three (3) spider
gears inside the differential
spur gear and heavily
lubricate all sides with
grease.
STEP 5
Press 5x11mm bushings into
the left gearbox half the
same way that you did it in
the previous step for the right
side. Lubricate the axle shaft
and insert it through the
bushings. Insert the drive
gear shaft next to it as
shown(arrow).
STEP 2
Place a large bevel gear on
top of the three spider gears
on both sides of the differen-
tial spur gear. Lubricate
each large bevel gear on
both the gear side and then
the back side as shown.
Drive gear
3mm Lockwasher
3mm
Locknut
STEP 6
Insert a 5x8mm bushing in
one end of the drive gear and
a 5x11mm bushing in the
opposite end.
STEP 3
Place a metal bevel gear
stay plate over each large
bevel gear. Line up the three
holes and insert three (3)
3x17mm shoulder screws.
Secure with 3mm lock wash-
ers and 3mm lock nuts.
Install all three screws from
the same side. Make sure to
assemble the diff so that all
of the nuts are on one side
of the diff and the screw
heads on the other side.
3x17mm
Shoulder screw
STEP 7
Lubricate the bushings in the
drive gear with the silicon
grease and slide the drive
gear onto the drive gear
shaft. Lubricate the teeth of
the drive gear. Slide the dif-
ferential assembly onto the
axle shaft in the left gearbox
half. Make sure the 3mm
locknuts are facing out as
shown (arrow). Rotate the
gears to check your
installation.
STEP 4
First press a 5x11mm bush-
ing into the inside of the right
gearbox half (they are
marked with "L" and "R" on
the inside). Then press a
5x11mm bushing into the
outside end of the axle
housing. Lubricate the axle
shaft and slide it through the
bushings (arrow). There may
be some resistance where
the hole is drilled near the
end of the shaft, but it will
snap through the bushing.
3x20mm
Machine screw
3mm lockwasher
3x10mm
3x25mm
Self-tapping
Machine
screw
STEP 8
Put the gearbox halves
together. You may need to
rotate the axle shafts to align
the shaft with the large bevel
gears in the differential
assembly. Secure the gear-
box halves with three (3)
3x20mm round head screws,
washers, and 3mm locknuts.
Finish the assembly with a
3x10mm self-tapping screw
in the remaining hole in the
left gearbox half as shown
5
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