Chevrolet 70 1969 Series, Shop Manual

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STEERING SYSTEM 9A-16
SPECIFICATIONS
MODEL APPLICATION
T R U C K SERIES G E A R M O D E L R A T IO
Series H/J-70-80 ............................................................................... 553-D-81 28.14 to 1
Series T-70 ...................................................................................... 553-D-17 28.14 to 1
Series T-80 ................ ..................................................................... 568-D-46 30.51 to 1
O P T I O N A L
Series H/J-70-80 ............................................................................... 554-D-6 28.14 to 1
STEERING GEAR SPECIFICATIONS
M a k e ................ ................................................................................................. Saginaw Steering Gear Division
T y p e ................ ...........................................................................................
Recirculating Ball and Sector Nut
M o d e l ............................................................................................................................................See chart above
Steering Gear Adjustments:
W orm Bearings
Pull to keep wheel m o v in g ......................................................................... .................. 1-1/2 to 2 Lbs.
End Cover Shim Thickness (568-D—Gear only)................................ 0.002", 0.005” , 0.010” , 0.030"
Sector Gear Lash
Pull over center ............................................................................................... . 2-3/4 to 3-1/4 Lbs.
Lash Adjuster Shim Thickness............................................................. 0.063", 0.065", 0.067", 0.069"
Width I.D. O .D .
Idler Lever Bushing Tilt Cab M o d e ls........................................0740" 1.125" 1.312"
.0760" 1.126” 1.313”
TORQUE SPECIFICATIONS
TY PE OF
LOCATION PART
Steering W heel N u t................................ Nut
Steering Colum n Pivot Bolt Conventional
Cab M o dels........................................ Bolt
Steering Colum n R elease Bolt
Conventional Cab M o d e ls.................... Nut
Support B ra ck e t to In strum ent Panel
T ilt Cab M o d els.................................. Bolt
M ast-Jacket Mounting Clam p to Support
Bracket T ilt Cab M o d els..................... Bolt
Steerin g Upper Shaft Low er B earing
Stop B o lt............................................ Nut
Steering Shaft Coupling to Worm Shaft
C la m p ................................................. Bolt
Steering Shaft Slip Yoke to Worm Shaft
Clam p B o lt......................................... Nut
Interm ediate Shaft to Worm Shaft Clam p
Bolt S e rie s TV-70 ............................ Nut
Except S eries TV-70................. Nut
Steering Upper Shaft to Lower Shaft
Clam p B o lt......................................... ..... Nut
Drag Lin k to Pitm an A rm S tu d * ............. ..... Nut
Drag Lin k to S teerin g A rm S tu d * ...........
Nut
Drag Lin k to Id ler Lever S tu d * .................... Nut
Drag Lin k Clam p Bolt
Except F-070 or F-090 Front A x le ........ ..... Nut
With F-070 or F-090 Front A x le ........... ..... Nut
Connecting Rod to Pitm an Arm S t u d * .. . . Nut
TORQ UE
(FT.-LBS.)
45-50
8-10
8-10
20-25
15-20
8-12
35-40
40-50
35-45
40-45
30-35
125-150
125-150
125-150
65-75
55-65
125-150
LOCATION
Connecting Rod to S teerin g A rm S t u d * ...
Id ler Lin k to Pitm an Arm S tu d * .............
Idler Lin k to Idler Lever S t u d * ..............
Idler Lever to Fram e S tu d ......................
Idler Lever to Id ler Lever B rack et S tu d *.
T ie Rod to Steering A rm S tu d *
Except F-070 Front A x le ......................
With F-070 Front A x le .........................
T ie Rod End Clam p Bolt
Except F-070 Front A x le ......................
With F-070 Front A x le .........................
Steering Arm to A xle S tu d*
Steerin g Gear to Fram e Bolt
Steering G ear:
Pitm an Arm to S h a ft:
553-D -17...............
TYPE OF TORQ UE
PART (FT.-LBS.)
Nut 125-150
Nut 125-150
Nut 125-150
Nut
110-130
Nut
175
Nut 125-150
Nut 230-250
Nut 60-80
Nut 80-100
Nut 400
Nut 180-240
Nut
50-60
Nut
90-110
Nut
25-35
Bolt 25-35
Bolt 35-45
Nut 70-100
Nut
30-50
Nut 185-215
Nut 100-110
Nut
100-110
Nut 250-300
Nut
250-300
*Tighten to Specified Torque, Then A dvance
to Next Aligning Slot and Install New Cotter Pin.
CHEVROLET SERIES 70 -80 H EAVY DUTY TRUCK SH O P M A N U A L