Is your truck fully loaded with a trailer and TRX4Mad House upgrades? Your suspension gets worst as you add weigh and causes it to have rear sag. Even thought Traxxas does include 4 stiffeners for your TRX4m, there is only one for each wheel and only have one size. This kit comes with and XL, L, M, S suspension stiffener.

There are 4 of each size in order to have the whole truck rocking the same stiffness. The stiffeners work just like the Traxxas ones but the different sizes lead to you having tons of different ways to make your truck better.

These will also help with torque twist in the body.

Please Note -

As this is a 3d printed product that is subject to some minor defects (Every product is checked for any big defects before shipment)