Product images and videos are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Sale

Chassis Components› Chassis and Frame Components

Team Z Motorsports

Lower Torque Box Replacement Kit

Name: Lower Torque Box Replacement Kit
Brand: Team Z Motorsports
SKU: TZM-LTBR-M-W

$449.82 $319.13 Save $130.69

SKU: TZM-LTBR-M-W

Free Shipping over $200

$100 Minimum Order

Non-Returnable Item

DIY PRO SHOP

Moderate — 2–4 hours

Overview

The Team Z Motorsports Lower Torque Box Replacement Kit is a welded, adjustable torque box designed for 1979-2004 Mustangs. It is CAD-designed and CNC laser cut from 1/8 inch material with 3/16 inch thick doubler plates for enhanced strength. This kit features 10 holes of adjustment and a compact, modular welded design that also provides extra tire clearance for those using mini tubs.

Show original supplier description

The Team Z Motorsports 79-04 Mustang Lower Torque Box Replacement Kit is a precision-crafted upgrade designed to reinforce the lower section of your Mustang's chassis. By reinforcing the torque box, this kit helps reduce chassis flex, leading to improved overall handling and optimizing suspension geometry for optimal performance on race cars. Constructed with performance in mind, this kit is CAD-designed and CNC laser cut from 1/8 inch material, reinforced with 3/16 inch thick doubler plates. The compact, modular welded design not only contributes to its strength but also offers 10 holes of adjustment for fine-tuning. Additionally, this design creates extra tire clearance, which is particularly beneficial for vehicles equipped with mini tubs. The tab and slot technology used in this kit ensures an easy installation process and a precise fit. Upgrading to this Lower Torque Box Replacement Kit is a cost-effective method to extend the lifespan of your suspension components and prevent premature wear and tear. Experience enhanced performance and stability in your 1979-2004 Mustang by installing this essential suspension upgrade.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

Brand	Team Z Motorsports
Part Number	TZM-LTBR-M-W
Category	Chassis Components

Videos

How to install Team Z upper torquebox replacement kit

How To Install Team Z 79-04 You Weld Lower Torque Box Replacment Kit

Team Z upper torque box VS Merillat Racing comparison

Review: 1979-2004 Mustang Team Z Strip Series Upper Control Arms

Ep 025 - Team Z Lower Torque Box Installation!!!

Team Z Grip Series #1 Info

How to install The Team Z Tubular Front End Kit

Should you buy under car or through the floor Subframe Connectors?

5,000+ Trusted brands

1M+ Enthusiasts

5M+ Parts sold

(760) 282-4645 hello@motormia.co

Buy with Confidence

Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

View Full Return Policy

Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

View Full Shipping Policy