PS Magazine - DECEMBER 1980
PS, The Preventative Maintenance Monthly
ISSUE 337
DECEMBER 1980
With Sprag
Clutch Knowho±.
What a great ideA! ±utomAtic front-wHeel drive when your rear wHeels lose
their grip on ice, snow or mud! LIke your truck is doIng tHe tHINKing²l³e It's
got a brain.
YoU´ve already got tHat autOmAtic frontµwHeel drIve¶If your deuce-Andµa·
halF is one of those older jobs witH tHe "overrunning (sPRag-type) clutcH.¸
t.
-
NO
f
YoR
S·s±²PrG CLUTH I
l³ ´-µcKED
UP!
I
/
.±
I
dt
¹ther sIgns oF PossIble sprag trouble are fueº HOggiNg, sHOrt lIfe Of front
tIres, hArd steerIng, sTuBBorn shIfting and JumPIng out Of gEaR»
2
¼roUb½¾ Is, too many drivers And too mAny mechanIcS don't dig tHIs sprag
C½Utch¿ Ào drivers Are bUsting Up transFers, front prop shaftS and Front axles.
M¾chanicS can head oFF
_
some oF thIs damage by making SUÁe the transfer
½Inkage is adjUsted right.
to
Jiss
ÀUch sprag troUbl¾ can come From the transfer reverse shiFt linkage being oUt
oF adjUStÂent. ¼his can be fIxed Using the Instructions in ¼M 9-2320-209Ã20Ã1
(±Ug 78), paÁa 2-97a(2)(e).
(e) Adju¶¸ ¹inkagº»
Place r
smisSIon ±N
²EUTRAL. ³ho´tµ¶ ´·v·´Sµ sh¸ft rod (H) uNt¹l
´µmoºµ coN»´ol rod (J¼ ¹½ ¾¶ Max¿mum Fo´wÀ´d
pOs¸Á¸on ÃhµnÄ lµÅgthµn rµVµ´sµ ShÆÇt Èod ÉHÊ un˸l
È·mÌt· CO¶tÈol ´od
lJ)
stÀrºs to moVµ 1owÀ´d tÈa¶ÍF·´
casµÎ Ão ChµckÏ ÐlÀCµ tÈÀNSm¸>Ѹon ¸¶ RÒÓERÔE À¶d
tu´¶ p´opµllµ´ shÕÇt Ìnµ ´·volutÆon Cou¶ºµ´ClockW¾Öµ
×hµn faDN
Ø
G ´ÙÀr
?
f tÚuckÛ Ãhµ È
Ü
·mot· cont´ol lµVµ´
·
YoU g¾t a lot ÂoÁ¾ on th¾ sprag clUtch in
¼
9Ä2320-209-20 (±pÁ 65) para
Å58c (3
)²
ÆUt, b¾Çre yoU get yoUr Âechanic on it, check tO see if your trUckÈs sufFering
From a sIÂpl¾ case oF Éwindµup¸²caUsed by tHe driver and, maybe, easily fixed
by th¾ drIver.
3
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