Frame Stiffener

Upgrade your OBS truck’s chassis strength and handling with our premium frame stiffener. Engineered with precision-fit boxing plates, this 100% bolt-in kit reinforces your factory frame to reduce flex and improve overall rigidity—delivering a smoother, more responsive driving experience.

This frame stiffener installs easily with no welding, using existing factory holes to locate components for a true bolt-in upgrade. The heavy-duty steel boxing plates are designed to strengthen key areas of the frame, helping to prevent twisting and flexing under load or during aggressive driving. The added rigidity improves cornering, braking, and overall vehicle control, whether you’re daily driving, or pushing your truck on the road or track. Built from high-grade steel, this system is made to last and deliver consistent performance over time.

The ultimate solution to improve strength, stability, and handling in your OBS chassis.

Note: The factory fuel tank will need to be relocated to the rear of the truck.

Features

• 3/16 Steel Construction
• Uses Factory Holes to Locate
• Adjustable Transmission Mount
• Boxes Your Frame Rails
• Ability to Run up to 3 1/2″ Exhaust

Includes

• Transmission Crossmember & GM Polyurethane Mount
• Grade 8 Hardware
• Boxing Plates
• Frame Stiffener

Application

• 2WD 88-98 Chevy/GMC
• Short Bed Trucks
• GM Transmissions (T400, 700R4, 4L60, 4L80, 6L80, T-56, Tko500

3 - 4 Week Lead Times Typical

8898-OBS-SBFS Installation Instructions

We appreciate your business and are committed to providing you with exceptional service and timely delivery. Please review the shipping information below for your order.

Order Processing Time:

Orders are usually processed within 24-48 hours after the order has been placed.
Custom or special order items may take longer to process, typically 3-5 business days.

Shipping Methods:

Standard Shipping (3-7 business days)
Expedited Shipping (2-3 business days)
Express Shipping (1-2 business days)

Packaging:

Rest assured that all items will be securely and safely packaged to prevent any damage during transit. Fragile or high-value parts will be packaged with additional protective materials, such as bubble wrap or foam padding.

Shipping Rates:

Shipping rates vary based on the size, weight, and destination of the package. You can view the estimated shipping costs for your order during the checkout process before placing your order.

Order Tracking:

Once your order has been shipped, you will receive an email with the tracking number and carrier information. You can also track your order status by logging into your account.

International Shipping:

We ship worldwide! Please note that international shipping rates and delivery times may vary based on destination. Customers are responsible for any customs fees, import taxes, or additional charges that may apply.