Product Details

This Whiteline Rear Spring Bushing Kit fits the 1975-1986 Chevrolet K20. The kit contains 12 bushings, 6 tubes, and grease. Whiteline part number: W73477. Placement: rear.

On a leaf-sprung vehicle the spring eyes and shackles pivot on bushings, and they take the movement every time the axle moves. Worn rubber lets the axle shift and clunk, and heavy loads speed that up. Polyurethane resists deflection far better than the soft rubber it replaces.

Installation is rated moderate, with about 2 hours of work listed. Get the car aligned once it is back on the ground. Other Whiteline parts we list for the Chevrolet K20: Body Mount Bushing Kit, Transmission Mount Bushing Kit, and Front Sway Bar Link Bushing Kit.

Features

  • Bushing material: Made of polyurethane, which resists deflection better than soft rubber.
  • Grease: Moly grease is supplied to prolong the life of the parts.
  • Install guide: Whiteline packs an install guide with it.
  • Self-lubricating: Internal grease reservoirs keep the bushing lubricated as it works.
  • Bushing compound: The bushing material stands up to oil, grease, ozone, and weather.
Specifications
Part Number W73477
Part Name Spring Bushings
Vehicle 1975-1986 Chevrolet K20
Chassis Code C/K
Bushing Color Black
Bushing Inside Diameter 19 mm
Bushing Length 37.5 mm
Bushing Material Polyurethane
Bushing Outside Diameter 38.6 mm
Durometer 85
Grade Type Regular
Installation Difficulty Moderate
Installation Time (hrs) 2
Kit Contents 12 Bushings, 6 Tubes, Grease
Vehicle Placement Rear
Wheel Alignment Required Yes
Notes Fits vehicles with 1.5" Frame Shackle and 1.5" Main Eye (1700-2800# Axle Rating)
Fitment for K20 spring bushings

Fits the 1975-1986 Chevrolet K20. Each model year is listed below.

Vehicle fitment

This product fits the vehicles listed below.

YearMakeModelDrivetrainNotes
1975ChevroletK204WDFits vehicles with 1.5" Frame Shackle and 1.5" Main Eye (1700-2800# Axle Rating)
1976ChevroletK204WDFits vehicles with 1.5" Frame Shackle and 1.5" Main Eye (1700-2800# Axle Rating)
1977ChevroletK204WDFits vehicles with 1.5" Frame Shackle and 1.5" Main Eye (1700-2800# Axle Rating)
1978ChevroletK204WDFits vehicles with 1.5" Frame Shackle and 1.5" Main Eye (1700-2800# Axle Rating)
1979ChevroletK204WDFits vehicles with 1.5" Frame Shackle and 1.5" Main Eye (1700-2800# Axle Rating)
1980ChevroletK204WDFits vehicles with 1.5" Frame Shackle and 1.5" Main Eye (1700-2800# Axle Rating)
1981ChevroletK204WDFits vehicles with 1.5" Frame Shackle and 1.5" Main Eye (1700-2800# Axle Rating)
1982ChevroletK204WDFits vehicles with 1.5" Frame Shackle and 1.5" Main Eye (1700-2800# Axle Rating)
1983ChevroletK204WDFits vehicles with 1.5" Frame Shackle and 1.5" Main Eye (1700-2800# Axle Rating)
1984ChevroletK204WDFits vehicles with 1.5" Frame Shackle and 1.5" Main Eye (1700-2800# Axle Rating)
1985ChevroletK204WDFits vehicles with 1.5" Frame Shackle and 1.5" Main Eye (1700-2800# Axle Rating)
1986ChevroletK204WDFits vehicles with 1.5" Frame Shackle and 1.5" Main Eye (1700-2800# Axle Rating)

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