Peterbilt 348 2017 - Rear Axle Lubrication

REARAXLEANDSUSPENSION
RearSuspensionU-Bolts,Grade8
(lubricated*)
TORQUE**U-BOLT
SIZE
DIAME-
TER
THREAD
NmLb-Ft
3/4
333-408245-300
7/8
598-734440-540
1925-1,060680-780
1-1/8
1,470-
1,660
1,080-
1,220
1-1/4
1,890-
2,120
1,390-
1,560
1-1/2
3,130-
3,860
2,300-
2,840
*ChevronZincLubricantorSAE20/30oil
shouldbeusedonU-Boltthreads
**Torquerequirementsapplyto
manufacturerproprietarysuspensions.All
othersuspensionsmustreferandadhere
tooriginalmanufacturersshopmanual.
•Loadthevehicletoitsnormal
grossweightbeforetightening
U-bolts.Loadingthevehicle
ensuresproperadjustmentofthe
U-boltandspringassembly.
WARNING!
DonotreplaceU-boltsandnutswith
commonU-boltsorstandardnuts.
Thesepartsarecriticaltovehicle
safety.IfthewrongU-boltsornuts
areused,theaxlecouldloosenor
separatefromthevehicleandcause
aseriousaccident.UseonlyU-bolts
andnutsofSAEGrade8speci-
cationorbetter.Failuretocomply
mayresultindeath,personalinjury,
equipmentorpropertydamage.
RearAxleLubrication
Checkoillevelwiththevehicleparked
onlevelgroundandtheuidwarm.
Thelevelshouldbeevenwiththe
bottomofthellerhole.
CAUTION
Donotmixlubricantsofdifferent
grades;although,mixingdifferent
brandsofthesamegradelubricant
(meetingMILL2105C),isaccept-
able.Lubricantsofdifferentgrades
arenotcompatibleandcoulddam-
agetheaxle.
(03/17)Y53-6060-1C15-135
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