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GRIP PRO INSTALLATION MANUAL

10

 

A. Remove the snap ring 

with snap ring pliers 

Figure 7.

 Then 

remove the plug. See 

Figure 8

Next, remove the axle spacer (where 

applicable) as shown in 

Figure 9.

 

B. With the port now clear, 

push flanged end of axle shaft toward 

the center of the housing and install 

the “C” clip onto the button end of 

the axle shaft. Pull axle shaft outward 

so the shaft and washer seat in the 

counterbore of the side gear. Repeat 

for other axle shaft.

 

C. Install the axle spacer 

(where applicable), the plug and then 

the snap ring back into the side of 

the carrier. Make sure snap ring is 

properly seated before continuing.

If your axles are non-”C” clip style, do 

the following:

 

1. Install axle shaft bearing 

retaining plate and nuts. Tighten nuts 

to proper torque.

 

Note

: Some axles use shims or 

adjuster nuts to set the axle shaft 

end play. Refer to the vehicle service 

manual for the proper removal and 

installation procedures for the axle 

shafts.

48. Using a new gasket or silicone 

sealant, install axle cover and tighten 

bolts.

49. Install brake drums or rotors.

50. Install wheels.

51. With the vehicle level, remove the 

fill plug and fill housing to the proper 

level with the lubricant described on 

Page 2.

52. Lower vehicle and test operation 

of axle.

Figure 7

SNAP RING

Summary of Contents for Grip Pro

Page 1: ...INSTALLATION MANUAL POWERTRAX COM ...

Page 2: ...S SUPPLIED MAY DIFFER THE TRADEMARKS OF OTHERS REFERRED TO HEREIN ARE OWNEDBYTHEIRRESPECTIVECOMPANIESANDARENOTAFFILIATEDINANYWAYWITHMIDWESTTRUCK AUTOPARTS INC GDP ISATRADEMARKAND WORLD AMERICAN MOTIVE GEAR MOTIVE GEAR PERFORMANCE EXCEL AND EZ LINK ARE REGISTERED TRADEMARKS OF MIDWEST TRUCK AUTO PARTS INC USEOFTHE INCONNECTIONWITHAMARKOFMIDWESTTRUCK AUTOPARTS INC INDICATESTHATTHEMARKISREGISTEREDINA...

Page 3: ...lical cut gears to transfer power to the wheel with the most traction Always use an 80W 90 mineral petroleum based gear oil with at least a GL 5 rating Synthetic oil and oils that contain friction modifiers are NOT recommended SPECIAL NOTES All Powertrax Grip Pro limited slip carriers require a certain amount of resistance with the ground to start to the power transfer A Grip Pro differential will...

Page 4: ...ring gear which determines the backlash of the ring and pinion set When installing a differential the backlash should be set to the original backlash setting measured prior to disassembly To increase the backlash adjust the shim packs or threaded adjusters to move the ring gear further away from the drive pinion gear To decrease backlash move the ring gear closer to the drive pinion gear Bearing p...

Page 5: ...e non C clip style do the following A Remove axle shaft bearing retaining plate nuts and remove the retaining plate B Use a slide hammer to remove the axle shafts Be careful not to damage the oil seals Note Some axles use shims or adjuster nuts to set the axle shaft end play Refer to the vehicle service manual for the proper removal and installation procedures for the axle shafts 5 For removable c...

Page 6: ...lot and remove 12 Remove anti lock brake tone wheel if applicable Consult vehicle service manual for proper procedure 13 Remove differential bearing cones from the differential using the proper bearing puller and adapter See Figure 3 14 Clean all parts in a suitable cleaning solvent and dry thoroughly Clean axle housing by pushing a clean rag through the axle tube with a wooden rod Push the rag fr...

Page 7: ...ck as necessary to create a slip fit of the differential into the differential housing A slip fit is the thickest shim pack that can be installed by hand with slight resistance It will be necessary to rotate the differential case after each shim thickness change to seat the bearings 22 Remove the differential from the differential housing Measure the combined thickness of the shims This total shim...

Page 8: ...n Step 6 and adjust as needed To increase backlash remove shim thickness from the ring gear side and add an equal amount of shim thickness to the opposite side To decrease backlash add shim thickness to the ring gear side and remove an equal amount of shim thickness from the opposite side Note approximately 001 of shim equals 001 of backlash 32 Once the correct backlash reading has been establishe...

Page 9: ...juster and tightening the RH adjuster the same amount Decrease backlash by loosening the RH adjuster nut and tightening the LH adjuster nut the same amount When making adjustments always make the final adjustment in the tightening direction For example if the adjuster need to be loosened one notch loosen it two notches and tighten it one When the proper backlash has been established install the ad...

Page 10: ...ing back into the side of the carrier Make sure snap ring is properly seated before continuing If your axles are non C clip style do the following 1 Install axle shaft bearing retaining plate and nuts Tighten nuts to proper torque Note Some axles use shims or adjuster nuts to set the axle shaft end play Refer to the vehicle service manual for the proper removal and installation procedures for the ...

Page 11: ...GRIP PRO INSTALLATION MANUAL 11 Figure 8 Figure 9 PLUG AXLE SPACER ...

Page 12: ...L NECESSARY SERVICING OR REPAIR The POWERTRAX parts warranty is voided if the part is used for competition or if it has been modified To make a warranty claim on parts used in non competitive applications distribu tors should contact POWERTRAX and individuals should contact their POWERTRAX dis tributor for a Return Goods Authorization RGA Number No returns will be accepted without an RGA Number Al...

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