What causes driveline vibrations after lowering a truck?

Lowering a truck changes the angle of the driveshaft relative to the transmission and rear differential. When these angles become too steep or misaligned, it can cause the driveshaft to vibrate as it rotates, especially under acceleration.

What parts are included in this driveline alignment kit?

This kit includes pinion shims for the rear differential, a transmission spacer, a carrier bearing spacer, and Grade 8 hardware. It also comes with vehicle-specific installation instructions.

Will this kit work on trucks with a single-piece driveshaft?

No, this specific driveline alignment kit is designed for trucks that are equipped with a two-piece driveshaft. Vehicles with a single-piece driveshaft have different driveline geometry and vibration characteristics.

Belltech DRIVE LINE KIT 88-98 GM W/ 2pc Driveshaft 4inch

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Specifications

Brand: Belltech
Part #: 4981
UPC: 722439049817

Belltech DRIVE LINE KIT 88-98 GM W/ 2pc Driveshaft 4inch

Name: Belltech DRIVE LINE KIT 88-98 GM W/ 2pc Driveshaft 4inch
Brand: Belltech
Price: 72.42 USD
Availability: InStock

$72.42

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Belltech driveline alignment kit for 1988-1998 GM trucks with 2-piece driveshafts. Reduces vibrations after lowering.

Key Features

Fits 1988-1998 Chevrolet and GMC trucks with 2-piece driveshafts.
Application-specific solution to reduce or eliminate driveline vibrations after lowering.
Includes pinion shims to adjust rear differential angle.
Comes with a transmission spacer and a carrier bearing spacer.
Utilizes strong Grade 8 hardware for secure installation.
Designed to correct driveline angles on lowered vehicles.

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

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Product Details

Belltech is known for suspension components that help you dial in your truck's stance and performance. When you lower a vehicle, especially one with a two-piece driveshaft like many 1988-1998 GM trucks, the driveline angles change. This can lead to annoying vibrations, particularly when you're accelerating. This driveline alignment kit is designed to correct those angles and get rid of those unwanted shakes.

This kit includes a variety of parts to help you get the driveline angles back in spec. You'll find pinion shims to adjust the rear differential angle, along with a transmission spacer and a carrier bearing spacer. These spacers help to correct the angle of the driveshaft itself and the carrier bearing that supports it. It also comes with Grade 8 hardware, which is strong and reliable for this application, and detailed installation instructions tailored for your specific truck.

If you've lowered your Chevrolet or GMC pickup, like a C1500 Suburban or K2500, and are experiencing driveline vibrations, this kit offers a direct solution. It's designed to address the common issues that arise from a lowered stance on trucks equipped with a two-piece driveshaft.