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#1 |
Registered User
Join Date: Jul 2018
Location: Catskill Mountains,NY
Posts: 8,467
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Outer lock nut torque 85 K20
I’m getting conflicting torque specs for the outer lock nut on the front hub . Some say 160-200 ft lbs and others say 60-75 ft lbs . I don’t have a shop manual but my procedure was spin the hub as I torqued it to 50 ft lbs . Backed it off and torqued to 35 and backed it off about a little to line up the pin up to the lock washer . Installed and torqued the outer to 75ft lbs but I’m thinking maybe that’s to loose ?
Should I take it apart and retorque ?
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Mark 72 c20 custom camper Husky edition, 66 SS396 Chevelle 1964 Hawk, 63 Avanti,62 lark 1969 AMX , 1968 c20 stepside ,85 K20 1977 Suburban sold 68 anniversary. |
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#2 |
All about them K’s
![]() Join Date: Jun 2014
Location: Land of Entrapment
Posts: 6,373
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Re: Outer lock nut torque 85 K20
What you did should work just fine. I usually range any where from 35-50 final torque depending on how everything feels, and the axle I’m working on. The outer nut should be fine at 70.
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Tyler '57 3100 http://67-72chevytrucks.com/vboard/s...d.php?t=813888 '72 K20 Cheyenne http://67-72chevytrucks.com/vboard/s...d.php?t=662879 ‘69 K10 SWB http://67-72chevytrucks.com/vboard/s...d.php?t=805206 '98 Silverado LT K2500HD ECLB Vortec 454/4l80E: 6" lift 315/75/16's ‘87 IROC-Z all original 50K mile survivor TPI 305 IROC Blue ‘10 Camaro 2SS/RS Aqua Blue Metallic #93 -version 2.0 ![]() |
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#3 |
Senior Member
![]() Join Date: Dec 2009
Location: TN.
Posts: 8,073
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Re: Outer lock nut torque 85 K20
What you done sounds good.
I hope you greased or replaced the Inner spindle bearing while you had it apart. Picture for Reference.
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________________________________________________________________________________________ ____________________________________________ 84 Chevy K-20 63 Impala (my high school car) http://67-72chevytrucks.com/vboard/s...Crew Cab Build |
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#4 |
Registered User
Join Date: Jul 2018
Location: Catskill Mountains,NY
Posts: 8,467
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Re: Outer lock nut torque 85 K20
I did not the front axle was rebuilt before I bought it . I guess when I do the other side I’ll pull the spindle and look at it . Not even sure I’ll have to replace anything on the passenger side . Everything was well greased on the driver side but the cup was spinning . So it may be just a repack
__________________
Mark 72 c20 custom camper Husky edition, 66 SS396 Chevelle 1964 Hawk, 63 Avanti,62 lark 1969 AMX , 1968 c20 stepside ,85 K20 1977 Suburban sold 68 anniversary. |
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#5 |
Registered User
Join Date: Jul 2018
Location: Catskill Mountains,NY
Posts: 8,467
|
Re: Outer lock nut torque 85 K20
Never use the 4 wheel drive so the axle is never spinning . But now you got me thinking . I just ordered new axle spindle bearings and the OTC 7502 spindle tool . Guess I’ll be changing them out .
__________________
Mark 72 c20 custom camper Husky edition, 66 SS396 Chevelle 1964 Hawk, 63 Avanti,62 lark 1969 AMX , 1968 c20 stepside ,85 K20 1977 Suburban sold 68 anniversary. |
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