Torque Specifications

1987 Chevrolet Suburban R20, 5.7 K, StandardSECTION Torque Specifications
TORQUE SPECIFICATIONS

Application Ft. Lbs. (N.m)
Ball Joint (Upper Nut)
C10 & G10/20 (1) 50 (68)
C30 & G30 (2) 90 (122)
Ball Joint (Lower Nut)
All Models (2) 90 (122)
Brake Caliper Mounting Bolt 35 (48)
Crossmember
Brake Support Strut 60 (81)
To-Bottom Rail - All (Except Forward Control Chassis) 90 (122)
Forward Control Chassis (Motorhome) 215 (292)
Forward Control Chassis (Conventional) (3) 130 (176)
To-Frame Side Rail - All (Except Forward Control Chassis) 65 (88)
To-Frame Side Rail - Forward Control Chassis (Motorhome & Conventional) (3) 100 (136)
Engine Mount Support Bracket Mntg. Bolt 35 (48)
Lower Control Arm (Steel Bushings)
New - C20/30 & G30 280 (380)
Used - C20/30 & G30 130 (176)
Lower Control Arm Shaft
"U" Bolt-to-Frame - G10/20 65 (88)
"U" Bolt-to-Frame - C10/30 & G30 85 (115)
Shock Absorber
Upper Nut - C10/30 140 (190)
Upper Nut - G10/30 75 (102)
Lower Nut - C10/30 60 (81)
Lower Nut - G10/30 75 (102)
Stabilizer Bar Bracket-To-Spring Plate
C20/30 13 (18)
Stabilizer Bar Bracket
To-Lower Control Arm Mounting Bolt 25 (34)
To-Frame Mounting Bolt/Nut 25 (34)
Suspension Bumper
C10 & G10/30 15 (20)
C20/30 19 (26)
Tie Rod End-To-Steering Knuckle Mounting Nut
All Models 41 (55)
Upper Control Arm (Rubber Bushings)
C10 & G10/20 115 (156)
Upper Control Arm (Steel Bushings)
New - C30 & G30 190 (256)
Used - C30 & G30 115 (156)
Upper Control Arm
Pivot Shaft Nut - C10 & G10/20 70 (95)
Pivot Shaft Nut - C20/30 & G30 105 (142)
Bracket-To-Frame Side Rail Mntg. Bolts 65 (88)
Wheel Lug Nuts 75 (102)
INCH Lbs. (N.m)Β 
Brake Line Clip-To-Crossmember Mounting Bolt
"C" Models 150 (17)
"G" Models 100 (12)
Brake Line Clip
To-Upper Control Arm Mounting Bolt 150 (17)
Brake Splash Shield-To-Knuckle Bolt 120 (14)
(1) Additional torque required to align cotter pin must not exceed 90 ft. lbs. (122 N.m) maximum.
(2) Additional torque required to align cotter pin must not exceed 130 ft. lbs. (176 N.m) maximum.
(3) With 4-wheel power disc brakes.
RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.