Friction spring wear should not exceed .003' at points of
It is important that all parts be thoroughly cleaned for this
contact. Compare with measurement at unworn portion.
Note: Unless extreme care is exercised in removing this
Check the splines on the side gears and clutch
part, it may be damaged during removal. Replace with new
part if, after re-assembly, the frictional resistance is not
Remove any burrs or small chipped edges with a stone or
great enough to require a very firm hand pressure to rotate.
electric burr grinder. If large sections of the spline are
broken away, replace the part. Check the side gear hubs
The center cam must be free to rotate within the limits
of the keys in the spider. It is not necessary to remove the
Cheek the spring heights. They should be within 34'
center cam for inspection unless chips are present or
of original height on large models and within %' of original
replacement is required.
height on smaller, L, LS, B, E, J, KS and GS models.
Check the spring retainer for fractured splines or spring
FREE HEIGHT OF NEW SPRINGS
All thrust washers must be omitted unless otherwise
specified. The NoSPIN may lock up solid when the case is
Model Pt. No.
bolted together if the thrust washers are not omitted.
A failure of the hydrogen copper weld between the cam and
driven clutch will result in erratic operation by alternately
driving on one side only or driving both wheels with the
NoSPIN "locked". If a weld failure has occurred it will be
possible to rotate the cam ring in the driven clutch by
lightly tapping the cams.
Inspect the clutch teeth on the spider and driven clutches.
Very slight chips can be touched up with a stone. If exces.
sively chipped or rounded, these parts must be replaced.
Compare the tooth form with those on a new part. If a part
is replaced due to chipped teeth, always replace the mating
Holdout rings on some Silent and Silent-Overrunning
Cams on the center cam and driven clutch must not be
types are not slotted and frictional resistance is obtained
excessively chipped. A smooth wear pattern up to 50c%c of
the face width is acceptable on the clutch cam and center
chipping on the holdout ring, also rounded edges on the
lugs of the Silent-Overrunning type. A badly worn or
chipped holdout ring can cause chipping of clutch teeth.