Timbrens on 2015 RCLB

Hey guys. For context, I haul firewood, my ATV, motorcycles and soil in the back of my truck through the year, and twice a year tow my heavy boat trailer. I found my truck was ok, but squatted a bit and would get sort of wobbly and unstable feeling with alot of weight in the back. I didnt feel safe or comfortable with that situation when she was loaded down so I was searching for the best solution for me. I didnt want airbags for all of the reasons that people usually dont want them for, I didnt want an add a leaf or helwig spring helper becasue I didnt want to affect the unladen ride quality and I don tthink they would help at all with the side to side shimmy feeling I get with my trailer (tail wagging the dog) so I settled on sumo springs or timbrens. This is an old topic that has been gone through many times, but I dont think ever on a RCLB truck (same springs in the back but less weight) so I thought I'd throw my opinions in.

I setteld on timbrens because they're made in canada, and I'm canadian, and because my buddy had success with them on his old pickup.

Installation was as easy as you imagine - loosen 2 nuts and remove 2 on each side and replace bump stops with the timbrens and tighten back up. I didnt need to jack the truck up or anything. The instructions tell you that you want 1.5-2" clearance between the timbren and the frame for optimal performance. With my truck there was a bit more than that and I was worried it would be too much to ever actually engage during the normal use I put it through.

Fast forward to last night - I got a yard of damp topsoil in the back as its first test. That weight got it squatted onto the timbrens and they performed perfectly. The ride was not harsh at all, it actually felt better than when it was empty (like a truck should do). When I got home I crawled underneath and got my wife to jump on the bumper and you could easily see the timbrens absorbing and dampening the compressions and the side to side sway.

I was previously worried that if I put weight in the back that wasn't enough to have it sit onto the timbrens that it would bounce off of them over every bump in the road and make for a jarring ride...I can see they are far more compliant that I thought. If I find my opinion changes over time I'll post back in this thread to update, but sofar I am 100% satisfied with the product. My only nit pick, and its not timbrens problem really, is that on our trucks the bump stops are on the axle...so the timbren is upside down and I worry it will fill up with dirt and salt and water and eventually become packed in and lose the compliance and just become an oversized rock hard bumpstop.

 

Glad to hear you are happy with them!

I also have some Timbren's on my Crewmax and have been extremely happy with them as well. Airbags are awesome for the adjustability, but I live in the rust belt, and frankly didn't want to deal with any potential issues when I needed the additional support the most. I tend to tow a lot and it absolutely helps the rear stability when I have a lot of tongue weight. Before I had them I didn't love the squat I saw either. Of course a WDH is the correct answer for huge trailers and tons of tongue weight, but I mostly tow loaded down utility trailers and my car trailer. I only ever use a WDH for a big enclosed trailer when sway can become an issue.