What Timbrens Are Recommended For A 2013 GMC Yukon Denali Pulling A 26' Travel Trailer?

Updated 06/15/2026 | Published 06/08/2026

Question:

I have a 2013 GMC YUKON DENALI with the standard tow package and am considering the Timbrens. My 26 ft travel trailer with WDH is still sagging a little more than I would prefer. Trailer weight is 6k lbs. Please advise what you recommend?

asked by: Jay P

Expert Reply:

Hey Jay, thanks for reaching out. You're definitely looking in the right direction. If your Yukon is still squatting more than you'd like even with the weight distribution hitch properly adjusted, the Timbren # TGMRYS4 is a great addition. They engage only when there's enough load to compress the suspension, so they'll help support the tongue weight, reduce rear-end sag, and keep the vehicle sitting more level without affecting normal unloaded driving.

For a 6,000 lb travel trailer, a properly dialed-in WDH should still be doing the heavy lifting, but the Timbrens are a great way to add some extra support and stability. You'll typically notice less squat, improved handling, and a more planted feel, especially on uneven roads, in crosswinds, or when the trailer is fully loaded. If your goal is to get the Yukon sitting flatter and feeling more confident without going to airbags, the # TGMRYS4 is exactly what I'd recommend.

What kind of camper do you pull?

expert reply by: Jesse M

Timbren Rear Suspension Enhancement System
(click to enlarge)

Jay P.

6/9/2026

Thank you ! I pull a 2019 Heartland North Trail RLSS

Jesse M.

6/9/2026

@JayP Nice! That's a good size camper so I'm sure you will benefit from the Timbrens. Let me know if there is anything else I can do to help!

Gil

6/11/2026

Jay, I have a 30' camper and tow with my 09 Suburban. Not only will this absolutely satisfy your needs. It stops the tires from rubbing on turns when loaded. It will also help with a carload of people and stuff in the back without a trailer. The instructions are fine, I used a couple of 2.4's between the axle and the Timbren to push it into it's holder with a floor jack. I used penetrating oil as lubrication to aid in installation.

Jesse R.

6/13/2026

I Installed on my 2016 Chev Tahoe. They are good for the all the reasons mentioned by the expert above. But they are not miracle workers. Overload your setup and you will see unsafe performance. One advantage not mentioned is they truly reduce sway or wallowing load. Makes a noticeable difference. Put them on a 1999 Chev High Top van and 2006 GulfStream 30 ft RV. They work.

Jesse M.

6/15/2026

@JesseR Hey Jesse, cool name! Thanks for sharing your experience. Glad to hear the Timbrens have been working out for you. That's great real-world feedback!

Mike M.

6/13/2026

I put them on my 11 Chev Avalanche to help handle my Penske car trailer that gets loaded with a Buick Regal. You don't notice them when unloaded, but when the back end might otherwise sag, the Timbrens take over and keep it nice and level. The progressive rubber avoids jarring you. Good investment for me and easy to install on my Avalanche.

Jesse M.

6/15/2026

@MikeM Thanks for the review, Mike. Glad to hear the Timbrens are doing exactly what they're supposed to do, staying out of the way unloaded and stepping in when the trailer is hooked up. Sounds like they were a great fit for your Avalanche.

Kevin F.

6/13/2026

I purchased the Timbren enhancement system (bump stop replacement) for my 2009 4x4 Tahoe and it made a huge positive impact when towing my 26' Toy Hauler. I have always used a WDH, and the Timbren system has helped reduce some of the sag at the back of my Tahoe. I have always used sway bars and the Timbren system has helped with some of the remaining sway from towing. Adding Timbren has helped my overall towing experience. I also take my Tahoe out off-roading and I have seen handling improvements there as well. I used to bottom out and completely compress my old bump stops until you hear that wonderful metal clanging sound. The rear suspension does compress pretty far and certainly compresses the Timbren bump stops but they are much better than the stock stops. I don't hear any of that metal clanging sound from the rear suspension anymore while off-roading. Adding Timbren is the second best addition I made to my Tahoe; the first was adding a supplemental transmission cooler which was the best addition to help cool the transmission while towing. Adding Timbren is a great value with many positive benefits.

Jesse M.

6/15/2026

@KevinF Thanks for the review, Kevin. Glad to hear the Timbrens helped both on and off the road. Reducing squat, cutting down on sway, and getting rid of that harsh bottoming-out noise is exactly what they're designed to do. Sounds like they were a great upgrade for your Tahoe.