Radio Shack XMODS 60-440 User Manual

XMODS® Street Custom RC

Installation Difficulty: ADVANCED

Metal Bearings Upgrade Kit 60-440

Upgrade from standard plastic to metal ball bearings for reduced friction, greater precision, and better handling. Before
installing, turn off your vehicle and controller, then detach the car body.

Hint: Carefully count and set aside screws while disassembling so you can properly re-assemble later.

Upgrading the Metal Bearings for your XMODS

Use the lug wrench

1

supplied in your Starter Kit
to detach each of the lug
nuts and wheels.

Remove the screw on the

2

knuckle cap (or disk brake if
you have changed it on your
older EVO model). Carefully
unlatch the claw and pull out
the wheel shaft and knuckle
cap/disk brake.

Remove the bearings on both ends of

3

the wheel shaft. Wipe the grease off
the wheel shaft and install the metal
bearings. The grease ensures smooth
operation with the original bearings.
When you use the metal bearings,
grease is not necessary.

Align the drive shaft to the joint cup and

4

reassemble the wheel shafts with the drive shaft
installed into the knuckles. Then, replace the
knuckle caps/disk brakes and wheels. Unless you
have installed the All Wheel Drive kit, your front
wheels do not have a drive shaft/joint cup, so just
reassemble the front wheel shaft.

Take out the rear differential gear

6

unit, and replace the bearing on
both ends.

Install the differential gear

7

assembly into the rear drive
unit and insert the drive shafts
at both sides.

If you have installed the All

Wheel Drive kit, skip to Step 9.

Align the rear arm shaft to

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their holes and replace the
rear drive unit. You might
find it easier to remove
the dampers, and reinstall
them after you attach the
rear drive unit.

If you have not installed

the All Wheel Drive kit,
this completes the procedure.

If you have installed the

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All Wheel Drive kit:

10

Detach the center gear
and shaft and replace the
small bearing on the center
shaft with the small metal
bearing. Tweezers might
help with this step.

Place the center gear on the
center shaft. Lightly press and
rotate the center gear so the flat
side of the center shaft and the
center gear lock together.

Remove the two screws

5

that hold the rear drive
unit and detach it.
Remove the upper screw
first. Move the rear upper
arm and rear attachment
holder out of the way,
then, remove the lower
screw.

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11

12

Restore the center shaft and center gear into their
original positions and rotate so the front center gear
meshes with the shaft.

Align the rear arm shafts
to matching holes and
replace the rear drive unit.
You might find it easier
to remove the dampers
first. Reinstall them after
attaching the rear drive
unit.

1

13

Loosen the two screws from the tie rod holder and
the screws on the tie rod to remove the tie rod
holder and tie rod. Loosen the two screws from the
front gear case to release the front drive unit and
detach the front gear case cover.

17

Place the center gear back onto the center shaft.
Lightly press and rotate the center gear so the flat
side of the center shaft and the center gear mesh.

14

15

16

Upgrading with Older XMODS® Truck Models

Replace the bearing on both sides of the differential
gear.

Attach the front drive shafts, as
shown in the illustration.

Detach the center gear
and the center shaft and
replace the small bearing
on the center shaft with
the new metal one.
Tweezers may be helpful
for this step.

18

19

Restore the center gear and shaft into their original
positions and rotate center gear so the rear center
gear meshes with the shaft.

Align the front arm shafts with the proper holes,
then attach the front drive unit—with differential
gear installed—to the chassis. Replace the tie rod
and tie rod holder.

Use the lug wrench supplied in your Starter Kit to

1

detach the lug nuts and wheels.

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Loosen and remove the

2

screw on the knuckle cap
(or disk brake if you have
changed it). Carefully
unlatch the claw on the
knuckle cap and pull out the
wheel shaft along with the
knuckle cap.

Remove the bearings on

3

both ends of the wheel
shaft. Wipe the grease off
the wheel shaft and install
the metal bearings. The
grease ensures smooth
operation with the original
bearings. When you use the metal bearings, grease
is not necessary.

2