Timbren Rear Suspension Enhancement System Installation - 2003 GMC Yukon XL Video

By all accounts the Curt Spectrum Trailer Brake Controller #C51170 works well and is easy to use and install on most vehicles. It is a brand new item so not a lot of feedback has come in on it. I did learn a few things though after speaking with our…

The Timbren Rear Suspension Enhancement System part #TGMRCK15S is a great option to help reduce sag while towing with a 2017 Chevrolet Silverado 1500 but they do have a tendency to ride rough as the material is very dense. I think the perfect option…

Timbren springs #TGMRG25C and other jounce style springs will work to eliminate the sag of your van when it is loaded. It will also help when towing a trailer though weight distribution is better suited for that application. But since you want…

I spoke with my contact at Super Springs and the SumoSprings Custom Helper Springs, #SSR-204-40, will fit on your 2003 GMC Yukon XL with coil springs as long as it is a 1500 model. These springs are designed to replace your factory bump stops. Once…

On a towing setup you are always limited by the lowest rated component as the overall towing capacity since that is the weakest point. When it comes to trailer tires you always want to have them inflated to their max psi when cold. Not only do you…

We recommend that all trailer tires be inflated to the max psi stated on the sidewall of the tire. If the tire is under inflated, the weight capacity is lowered to an unknown amount for that tire. Although running lower air pressures can improve the…

With a 600 lbs tongue weight on your travel trailer, I recommend the #FA92-00-0800 Fastway e2 Weight Distribution w/ 2-Point Sway Control. This system is for a tongue weight of 400-800 lbs. Since you are at 600 lbs that puts your tongue weight right…

The Timbren #TGMRG25C Aeon Springs would replace the factory bump stops as shown in the provided diagram and video. Because the Aeon Spring is simply a taller version of the factory stop it will work just fine with your current air suspension.

The Timbren Jounce Springs #TGMRG25C are a fit for the 2003 GMC Yukon 1500 XL with Air Ride as long as it is the 4-wheel-drive version. These bolt on without drilling in place of the factory bump-stops. They work independently and offer progressive…

Since you are already using weight distribution I would not recommend adding suspension enhancement because the two systems tend to work against each other. But in general, using suspension enhancement like Timbren Springs #TGMRG25C does improve…

Yes, there is a bolt that goes all the way through that holds the Timbren Rear Suspension Enhancement System item #TGMRG25C in place. I have linked the instructions and an installation video below so you can see the steps involved and all the tools…

When you install the Timbren Rear Suspension Enhancement System, part #TGMRG25C, onto your 2003 Chevy Avalanche 4WD you will actually remove the original bump stop and install this product in place of it. What keeps this product in the mounting cup…