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Multicon Wholesale Hub

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Restore critical frame support with this rear fuel tank support crossmember designed for 1999–2010 Silverado and Sierra 2500HD/3500HD models. It replaces the crossmember positioned forward of the rear axle and supports the fuel tank and shock mounting points. The pre-welded design helps simplify installation without requiring removal of the truck bed. Built from rugged steel, this truck frame repair component is intended for replacing rusted or failing frame support.


Key Features

  • Direct-Fit Design: Replaces the crossmember located forward of the rear axle.

  • Pre-Welded Components: Includes left-side mount plate, right-side shock mount, and fuel tank strap brackets.

  • Bed-On Installation: Designed for installation without removing the truck bed.

  • Steel Construction: Provides strong structural support for demanding truck applications.


Specifications

  • Material: Steel

  • Compatibility: 1999–2010 Silverado and Sierra 2500HD/3500HD models

  • Main Components: Left-side mount plate, right-side shock mount, fuel tank strap brackets

  • Installation Location: Forward of the rear axle


Why Choose Our Rear Fuel Tank Support Crossmember

This chassis crossmember combines multiple pre-welded mounting components into one replacement assembly. Its bed-on installation design can reduce the amount of vehicle disassembly required during frame repair.

Perfect For

Suitable for 1999–2010 Silverado and Sierra 2500HD/3500HD trucks with a rusted or failing rear fuel tank support crossmember.

Restore Essential Frame Support

Replace a deteriorated crossmember with a rugged steel assembly designed to secure key fuel tank and shock mounting points.

Reviews|4.8
6 ratings

Item Reviews  (6)

Shop Reviews  (278)

Questions 

08/21/2026

Great replacement for a rusted fuel tank crossmember. The fit was right on target.
G
Gabriella Flatleyflag
Verified Purchase

06/27/2026

My truck had the typical rust problems underneath, and the original fuel tank support was definitely past its prime. This replacement gave me a much better starting point for the repair and fit where it needed to. Very pleased with the finished job.
E
Enrico Blockflag
Verified Purchase

08/13/2026

A small part that made a big difference in getting my truck back in shape.
A
Andre Mooreflag
Verified Purchase

06/14/2026

I bought this for a repair project on an older Silverado. The biggest thing I wanted was proper fitment, and this delivered. Once the old rusted section was removed, getting the replacement positioned correctly was straightforward.
T
Trudie Sengerflag
Verified Purchase

08/07/2026

Very impressed with the fit. It lined up nicely and made the repair much easier.
M
Maida Naderflag
Verified Purchase

06/02/2026

There is nothing fun about dealing with rust underneath an older truck, but having a properly shaped replacement makes the job much less frustrating. This crossmember was exactly the type of part we needed for the repair.
D
Delbert Hilpertflag
Verified Purchase
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