What causes driveline vibrations after lowering a truck?

Lowering a truck changes the angle of the driveshaft. When the angle is too steep or incorrect, it can cause vibrations, especially when accelerating. This kit helps to correct those angles.

What parts are included in this driveline alignment kit?

The kit includes pinion shims, a transmission spacer, a carrier bearing spacer, and all necessary Grade 8 hardware for installation. It's designed for trucks with a two-piece driveshaft.

Will this kit fit my F-150 if it hasn't been lowered?

This kit is specifically designed for lowered trucks, particularly those with a 4-7 inch drop, where driveline angle correction is needed. It may not be necessary or beneficial for stock-height vehicles.

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Specifications

Brand: Belltech
Part #: 4990
UPC: 722439049909

Belltech DRIVE LINE KIT 87-96 F150 EXT. CAB

Name: Belltech DRIVE LINE KIT 87-96 F150 EXT. CAB
Brand: Belltech
SKU: belltech-belltech-drive-line-kit-87-96-f150-ext-cab-t14-257720
Price: 93.41 USD
Availability: BackOrder

$93.41

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Fits 1987-1996 Ford F-150 Ext. Cab. This kit corrects driveline angles to eliminate vibrations after lowering your truck.

Key Features

Fits 1987-1996 Ford F-150 Extended Cab with a 2-piece driveshaft and a 4-7 inch drop.
Corrects driveline angles to reduce or eliminate vibrations during acceleration.
Includes pinion shims, transmission spacer, and carrier bearing spacer.
Uses strong Grade 8 hardware for secure installation.
Designed as an application-specific solution for lowered trucks.

⚠️ 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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About this part

Product Details

If you've lowered your 1987-1996 Ford F-150 Extended Cab and are experiencing vibrations when you accelerate, it's likely due to changes in your driveline angles. This Belltech Driveline Alignment Kit is designed to fix that problem.

When a truck is lowered, especially with a 4-7 inch drop, the angle of the driveshaft can become incorrect, causing unwanted vibrations. This kit includes pinion shims, a transmission spacer, and a carrier bearing spacer, along with all the necessary Grade 8 hardware. These components work together to bring your driveline angles back into specification, smoothing out acceleration and making those vibrations a thing of the past. It's a specific solution for trucks with a two-piece driveshaft that have been lowered.