Timbren Industries

Timbren Industries: Over 55 Years of Suspension Innovation

Founded in 1965 and headquartered in Whitby, Ontario, Canada, Timbren Industries has spent more than five decades engineering suspension solutions that help drivers tow heavier, haul smarter, and explore harder terrain with confidence. What sets Timbren apart isn't just longevity — it's the proprietary Aeon® hollow rubber spring technology that sits at the core of nearly every product they make.

The Aeon® Difference: Progressive Rate Rubber Engineering

Traditional suspension helpers — whether steel add-a-leaf springs or air bags — tend to operate on a linear spring rate, delivering the same amount of resistance regardless of how much weight is actually bearing down on them. Timbren's Aeon® hollow rubber springs work differently. Their progressive spring rate means the springs work progressively harder as load increases, automatically adapting to the weight placed on the suspension. The result is a system that stays largely out of the way on an empty truck and provides firm, reliable support when you're loaded to capacity. Because the springs are made of natural rubber, they are also self-damping — absorbing road shock without the need for additional components, air lines, or ongoing maintenance.

Aeon® springs are available in single, double, and triple convolution designs — round and square — and are engineered to provide extra weight capacity ranging from 1,000 lbs up to 50,000 lbs, making them equally at home on a weekend warrior's pickup and a heavy commercial vehicle fleet.

Timbren SES: Suspension Helper Spring Kits for Trucks & SUVs

Timbren's most popular product line is the Suspension Rubber Helper Spring Kit — sold under the SES (Suspension Enhancement System) name. These kits replace a vehicle's factory OEM bump stop with a taller, higher-capacity Aeon® rubber spring, effectively transforming an often-overlooked component into a meaningful load-bearing upgrade. SES kits are available for a wide range of trucks, vans, SUVs, and commercial vehicles — including popular platforms like the Chevy Silverado, GMC Sierra, and Ford F-250 — and are designed for straightforward DIY installation with basic hand tools and zero ongoing upkeep. Drivers report noticeably reduced rear squat, improved trailer stability in crosswinds, and a more controlled, level ride whether loaded or empty.

Off-Road & Multi-Purpose Bump Stops

For drivers who push their vehicles beyond the pavement, Timbren's Suspension Multi Purpose Bump Stop line delivers the same Aeon® rubber spring engineering in a form factor tuned specifically for off-road articulation and high-impact landings. These bump stops cushion the suspension's end-of-travel moment — the point where the axle would otherwise crash hard against the frame — replacing that jarring contact with a controlled, progressive compression. The hollow rubber construction allows smooth flex under compression while the thick, durable walls are built for long-term performance in demanding environments.

Axle & Spring Components

Beyond SES kits and bump stops, Timbren also supplies Axle & Spring Parts that extend the reach of their suspension engineering into trailer applications and specialized vehicle builds. These components reflect the same Aeon® rubber spring philosophy: durable, maintenance-free parts designed to absorb load and improve ride stability across a broad range of vehicle and trailer configurations.

Trusted Across Industries

Timbren's products serve an impressively broad customer base — from weekend towers and off-road enthusiasts to municipal snow removal fleets, military applications, agriculture, mining, and commercial trucking. That cross-industry trust, built over more than half a century, speaks to the durability and real-world reliability that Aeon® rubber spring technology delivers day in and day out.