Diff Assembly - Jconcepts BJ4 Worlds Edition Manual

STEP 3
DIFFERENTIAL RING GEAR:
SHORT HUB ASSEMBLY
STEALTH DIFF LUBE
STEP 4 LONG HUB ASSEMBLY:
1. INSERT THE DIFF SPRING INTO THE LONG OUTDRIVE HUB.
2. INSERT THE T-NUT INTO THE LONG HUB UNTIL IT TOUCHES
THE DIFF SPRING.
3. ADD A LIGHT COAT OF STEALTH LUBE TO THE LONG HUB FACE.
4. PLACE A DIFF DRIVE RING ONTO THE FACE OF THE LONG HUB.
5. INSERT THE 3/16 x 5/16 DIFF BEARING INTO THE LONG HUB.
STEP 5

DIFF ASSEMBLY:

1. INSERT THE LONG HUB ASSEMBLY INTO THE SHORT HUB ASSEMBLY,
MAKING SURE YOU LINE UP THE BOLT IN THE HUB AND THE BOLT
THREADS INTO THE T-NUT.
CHECK ALIGNMENT OF THE HUBS
2. TIGHTEN THE DIFF WITH YOUR 5/64" ALLEN WRENCH, BUT NOT COMPLETELY.
3. SCREW IN THE DIFF BOLT A FEW TURNS THEN STOP TO ROTATE THE DIFF HUBS
IN OPPOSITE DIRECTIONS. THEN SCREW IN THE BOLT SOME MORE. FOLLOW
THIS PROCEDURE TO CHECK PROPER ALIGNMENT OF THE PARTS. THE
FOLLOWING NOTE CLARIFIES THIS.
READ THE FOLLOWING CAREFULLY
AS YOU TIGHTEN THE DIFF BOLT, PAY CLOSE ATTENTION TO THE FEELING WHEN THE SPRING IS FULLY
COMPRESSED. DO NOT OVERTIGHTEN THE BOLT. WHEN YOU FEEL THE SPRING COMPRESSED,
LOOSEN THE DIFF BOLT 1/4 TURN. NO MORE, NO LESS. AFTER YOU HAVE DRIVEN THE CAR FOR ONE
BATTERY PACK, RECHECK THE DIFF ADJUSTMENT AS ABOVE SO THAT WHEN YOU FEEL THE SPRING
FULLY COMPRESSED, LOOSEN THE DIFF BOLT 1/4 TURN. NEVER ADJUST THE DIFF ANY OTHER WAY.
NOW ASSEMBLE THE SECOND DIFF THE SAME WAY
1. TRIM ANY BURRS FROM THE INSIDE OF THE GEAR WITH A HOBBY KNIFE.
2. ADD A GENEROUS AMOUNT OF STEATLH DIFF LUBE TO THE RING GEAR
BALL HOLES AND PUSH IN THE TWELVE 3/32 DIFF BALLS. THEN PUSH IN
THE LUBE THAT CAME OUT.
3/16 x 5/16 DIFF BEARING
DIFF DRIVE RING
TRIM ANY BURRS FROM THE INSIDE
OF THE GEAR WITH A HOBBY KNIFE
AFTER APPLYING THE STEALTH DIFF LUBE,
SNAP THE 3/32 DIFF BALLS IN PLACE
NOTE: REMOVE ANY OIL RESIDUE FROM OUTDRIVE
HUB THOROUGHLY BEFORE APPLYING STEALTH LUBE.
LONG OUTDRIVE HUB
T-NUT
DIFF SPRING
TIGHTEN USING 5/64" ALLEN WRENCH
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