DANA TRAC-LOK 60 Service Manual Download Page 5

MODEL 60 TRAC-LOK 

FIGURE  #4 

1015-4 

Remove  differential  using two  pry  bars  as  shown. 

Use caution to avoid damage to ring and pinion. It will 

not be necessary to remove the differential bearings at 

this time; however, the bearing  cups should 

be 

mark· 

ed  or  tagged  to  indicate  from which  side  of the case 

they  were  removed.  After  differential  case has  been 

removed,  remove  spreader. 

FIGURE  #5 

101�5 

Place  one  of  the  axle  shafts,  which  was  removed 

from  the  assembly,  into  a  vise.  Tighten  shaft  in  vise 

firmly.  The  spline  end of the  shaft  is not to exceed 

inches 

(76.2 

mm)  above the  top of the vise.  This  will 

prevent the shaft from fullyenteringinto thesidegear 
and causing  interference  with  the spacer  block•  and 

step plate during disassembly of the pinion mate gears, 

etc.  Caution  should be used  that the  vise jaws do  not 
locate on  axle  splines  or  any machined  surfaces. 

NOTE• 

SOME 

SEMI-FLOAT 

AXLES  REQUIRE 

SPACER  BLOCKS  BETWEEN  THE  AXLE 

SHAFTS FOR BEARING END PLAY ADJUST­
MENT.  THE  SPACER  BLOCK  IS  NOT  USED 

ON  FULLFLOAT  OR  SEMI-FLOAT  AXLES 
WITH  NON-ADJUSTABLE  WHEEL  BEAR· 

INGS. 

FIGURE  #6 

101$-& 

Place  a  few  shop  towels  over  vise  to prevent any 

damage during disassembly of ring  gear. Assemble the 

differential  on  the  axle shaft with the ring gear screw 

;leads  up.  Assembling the  differential  onto the  shaft 

will serve as a  holding device to remove  the ring gear 

and to  disassemble the internal parts of the case. Re­
move the ring gear screws.  Drive out the lock pin us­

ing a  long drift. 

FIGURE  #7 

1015--7 

It  is  necessary  to  remove  the  ring  gear  to  allow 

clearance  for  the  removal  of  the  cross  pin.  Tap  ring 
gear  with  rawhide  hammer  to free  it from case. 

NOTE 

IT  IS  RECOMMENDED  THAT,  ON  SPICER 
AXLES, RING GEAR SCREWS BE REPLACED 

WHENEVER THE RING GEAR IS REMOVED. 

Remove differential case from the axle shaft and re· 

move  ring  gear. 

Summary of Contents for TRAC-LOK 60

Page 1: ...MODEL 60 TRAC LOKTM LIMITED SLIP DIFFERENTIAL SPICER MODEL 60 TRAC LOK LIMITED SLIP DIFFERENTIAL SPICER AXLE DIVISION DANA CORPORATION P ORT WAYNE INDIANA ...

Page 2: ...scribed in this service manual are effective methods for performing service operations Some of these service operations require the use of tools specially designed for the purpose The special tool should be used when and as recommended It is impossible to know evaluate and advise the service trade of all conceivable ways in which service might be done or of the possible hazardous consequences of e...

Page 3: ... Slip Differentials impose additional re Jirements on lubricants which cannot be covered y the above specifications Some otherwise good bricants produce chatter or bumping in turn g corners with Limited Slip Differentials Many lhicle manufacturers find it necessary to specify a 3 special lubricant or lubricant additive for use with Limited Slip Differentials Check the vehicle manufacturer s lubric...

Page 4: ...ccur when vehicle resistance exceeds the maximum possible tractive ef fort which can be obtained A differential can do no more than provide torque to slipboth driving wheels If this torque is not sufficient to move thevehicle not even a completely locked differential can do more DISASSEMBLY REMOVAL INSPECTION AND REPAIR OF TRAC LOK On Dana Spicer axles it is recommended that the complete assembly ...

Page 5: ...do not locate on axle splines or any machined surfaces NOTE SOME SEMI FLOAT AXLES REQUIRE SPACER BLOCKS BETWEEN THE AXLE SHAFTS FOR BEARING END PLAY ADJUST MENT THE SPACER BLOCK IS NOT USED 5 ON FULLFLOAT OR SEMI FLOAT AXLES WITH NON ADJUSTABLE WHEEL BEAR INGS FIGURE 6 101 Place a few shop towels over vise to prevent any damage during disassembly of ring gear Assemble the differential on the axle ...

Page 6: ...mmended that when referring to the Trac Lok obtain the complete part number and build date To do this it will be necessary to wipe offthe lubricant from the case FIGURE 9 101S t Remove the cross pinand spacer block if so equip 6 ped l se a hammer and punch as shown to remove the cross pin from the case NOTE AXLE SHAITS WHICH REQUIRE END PLAY ADJUSTMENT HAVE A SPACER BLOCK l N THE DIFFERENTIAL CASE...

Page 7: ...ingscrew until it becomes slightlytight This will collapse the Belleville plates and allow a loose condition between the side gears and pinion mate gears Remove both pinion mate spherical washers Use a shim stock of 030 76 mm thickness or an equiva lent tool to push out the spherical washers Relieve the tension in the Belleville plates by loosening the forcing screw FIGURE 14 1015 14 Insert large ...

Page 8: ... and pinion mategears The gearteeth ofthese parts should be checked for extremewear and possible cracks The external teeth of the side gear which retain the concentric groove discs should also be checked for wear or cracks If replacement of onegear is required due to wear 8 etc then both side gears pinion mate gears and washers are to be replaced Cross Pin If excessive wear is evident the cross pi...

Page 9: ...pecified lubricant 9 SlOE GEAR OISHEO SPACER FIGURE 20 101 20 Assemble the retainer clips to theears of theplate Make sure bothclips are completely assembled or seat ed onto the ears of the plates With thediffere ntial case positioned as shown as semble the clutch pack and side gear into the case Make sure the clutch pack stays assembled to the side gear splines and that the retainer clips are com...

Page 10: ...ottom plate This will hold both clutch packs in position With tools assembled into the case position case onto the axle shaft by aligning the splines of the side gear with those of the shaft FIGURE 24 101S 24 Loosenforcing screw slightly Assemble both pinion mate gears as shown Hold gears in position by hand While holding gears inplace insert turning bar into case Pull on bar to rotate case allowi...

Page 11: ...FIGURE 27 101S J7 Using a scale as shown wrap a pieceoftape around the punch approximalely I 3 4inches 44 5mm from the end of he punch This indicates the necessary deplh required for assembly of he lock pin 11 FIGURE 28 101S 21 Assemble lock pin Hi on punch unlil he ape on rhe punch is lined up wilh he case Remove case from axle shaf1 Assemble ring gear10 e Uneup he ring gear screw holes wilh hose...

Page 12: ... gear are meshedwith those of pinion Use a ra wh id ehammer to seat differenti al assembly in t o cross bore of housing Care shouldbe taken t o a vo i d nickin g the teeth of the ri nggear and pinion dur ing assembly 12 Remove spreader FIGURE 32 101 Installbearing caps Make sure the let t ers stamped on t he caps cor re spond with those stamped on the hous ing in horizontal and vertical positions ...

Page 13: ...54 N m 13 NOTE IF SPICER AXLE TORQUE SCREWSTO 30 40 LBS IT 41 45 N m NOTE ON ALL FRONT AXLES THECOVERPLATE IS OF A DIFFERENT DESIGN AND R QUIRES THE USE OF A CASKET DO NOT USE A SILICONE RUBBER SEALER MAT ERIAL Assemble axle in vehicle Fill axle with the s pe ci fied lubricant Refer to v ehicle manufacturer s lubri cant recommendations Assemble brake backing plates etc and axleshaf ts into housing...

Page 14: ...own toprotect the bear ingfrom becoming damaged during a ssem bl y of t op bea rin g Tools C4025 Installer C4171 Handle DD 914 42 Button Prelubricate dif ferentia l bearing cones with the specifi ed lub r i cant Assemble case into housin g Follow the steps as illustrated in Figures 30 thru 32 14 FIGURE 38 1015 SII Check ringgearand pinion backlashinthree equally spaced points with dial indicator a...

Page 15: ...e changes from time to time without notice or obligation in specifications descriptions and illustrations and to discontinue models or revise designs Questions regarding this manual should be directed to Spicer Axle Division Dana Corporation P O Box 1209 Fort Wayne Indiana 46801 Attention Engineering Technical Service Dept 2 84 500 ...

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