Mountainpeak Rear Fuel Tank Support Crossmember Fit for 2007-2014

In this review the Mountainpeak rear fuel tank support crossmember is evaluated for owners of 2007-2014 Chevy Silverado 1500 and GMC Sierra 1500 trucks who need a durable replacement for the original rear crossmember. The bottom line is that this part is built from heavy-duty steel with an electroplated coating and mandrel bends, offering strong corrosion resistance and a precise fit; it is best valued by hands-on installers who want a straightforward swap that restores the fuel tank support and the right-side upper shock mounting point.

Key Features

• Direct Fitment: Designed specifically for 2007-2014 Chevy Silverado 1500 and GMC Sierra 1500 models so it replaces the factory crossmember without guesswork.
• Heavy-Duty Steel Construction: The crossmember is made of thick steel that provides the strength needed to support the rear of the fuel tank and the passenger side upper shock mount.
• Electroplated Coating: The electroplated finish improves rust resistance over raw metal and helps extend service life in road salt environments.
• Mandrel Bent Tubing: Mandrel bending preserves tube integrity for consistent strength and cleaner welds at the joints.
• Pre-Welded Mounting Points: The crossmember arrives pre-welded with the driver inner frame mounting plate, right side upper shock mount, and fuel tank suspension brackets to reduce fabrication time.
• Serviceable Installation: The replacement can be installed without removing the truck bed; remove the gas tank and shocks, cut off the old crossmember, weld the new one in place, and reinstall components.

Who It's For

This crossmember is for DIY mechanics and professional installers working on 2007-2014 Silverado 1500 or Sierra 1500 trucks who need an OEM-style replacement for a corroded or damaged rear fuel tank support. It suits owners who are comfortable removing the gas tank and welding a replacement in place or who have access to a shop with welding capabilities.

It is not ideal for owners who want a bolt-in, non-weld solution or those who lack welding tools and cannot access professional installation, since the recommended procedure includes cutting out the old crossmember and welding the replacement securely.

Pros & Cons

Pros

• Sturdy steel construction and mandrel bends deliver reliable structural support for the fuel tank and shock mount.
• Electroplated coating reduces the risk of premature rust compared with bare metal replacements.
• Pre-welded mounting plates and brackets save fitting and alignment time during installation.
• Designed for exact fitment on 2007-2014 Silverado/Sierra models, simplifying replacement.

Cons

• Installation requires removal of the fuel tank and welding of the crossmember, so less suitable for owners seeking a no-weld swap.
• Finish will still be exposed to road conditions; periodic inspection is advised despite the electroplated coating.

Specifications

Fitment	2007-2014 Chevy Silverado 1500, GMC Sierra 1500
Material	Heavy-duty steel
Coating	Electroplated corrosion-resistant finish
Design Features	Mandrel bent tubing, pre-welded mounting plates and suspension brackets
Functions	Supports rear of fuel tank and passenger side upper shock mount
Installation	Remove gas tank and shocks, cut old crossmember, weld replacement, reinstall components

Our Verdict

The Mountainpeak rear fuel tank support crossmember is a practical, value-oriented replacement for Silverado and Sierra owners who need to restore tank support and the rear shock mount. Its heavy steel construction, electroplated finish, and pre-welded mounting points make it a durable swap when fitted by someone comfortable with removing the tank and welding. It represents good long-term value for those seeking a reliable structural repair rather than a quick bolt-in alternative.

Frequently Asked Questions

Is this crossmember an exact fit for my 2008 Silverado 1500?
Yes, it is designed for 2007-2014 Chevy Silverado 1500 and GMC Sierra 1500 models and installs in place of the original rear crossmember.

Will I need to remove the truck bed to install it?
No, the installation does not require removal of the truck bed; you do need to remove the fuel tank and old shocks and weld the new crossmember in place.

Does the product resist rust?
The steel crossmember has an electroplated coating and mandrel-bent construction to improve rust resistance and welding quality, though periodic inspection is recommended.