Product Details

This Whiteline Transmission Mount Bushing Kit fits the 1977-1978 GMC K25 Suburban. The kit contains 4 bushings, 2 tubes, 2 plates, and an install guide. Part number W93470. Chassis code: C/K.

The transmission is held in the chassis by a mount that absorbs vibration. A soft or worn mount lets the gearbox rock when you shift or get on and off the throttle, which feels like a jerk, a clunk, or a delay. A firmer mount or bushing limits that motion. The polyurethane used here deflects much less than the original rubber under the same load.

Whiteline rates the install as moderate and lists about 1 hour. No alignment is needed afterward. To go with it on the K25 Suburban, see 15mm Front Sway Bar Bushing Kit.

Features

  • Bushing compound: The elastomer formulation is chosen to shrug off oil, grease, ozone, and the elements.
  • Bushing material: Made of polyurethane, which resists deflection better than soft rubber.
  • Install guide: An install guide comes in the box.
  • Easy to fit: Designed for an easy install with ordinary shop equipment.
  • Self-lubricating: The bushing carries its own grease supply in internal reservoirs, so it keeps moving freely.
  • Grease: Moly grease is supplied to prolong the life of the parts.
Specifications
Part Number W93470
Part Name Transmission Mount Bushings
Vehicle 1977-1978 GMC K25 Suburban
Drivetrain 4WD
Chassis Code C/K
Bushing Color Black
Bushing Material Polyurethane
Durometer 85
Grade Type Regular
Installation Difficulty Moderate
Installation Time (hrs) 1
Kit Contents 4 Bushings, 2 Tubes, 2 Plates, Install Guide
Material Polyurethane
Mounting Hardware Included No
Wheel Alignment Required No
Notes -

Vehicle fitment

This product fits the vehicles listed below.

YearMakeModelDrivetrainNotes
1977GMCK25 Suburban4WD
1978GMCK25 Suburban4WD

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