Frequently Asked Questions About Freightliner FLT Cabover Shock Absorbers

What years and models of Freightliner FLT cabovers do these shock absorbers fit?

Our shock absorbers are designed to fit Freightliner FLT cabover models from 1980 through 1991, including the FLT75, FLT86, and FLT106 series. However, there can be variations based on specific suspension configurations. We recommend checking your existing shock part numbers or contacting us with your VIN to ensure proper fitment. Some models with air ride suspensions may require different shock specifications than standard spring suspensions.

Are these heavy-duty enough for overloaded conditions and rough roads?

Yes, these shock absorbers are built with heavy-duty construction specifically for commercial trucking applications. They feature reinforced steel bodies, high-pressure nitrogen charging, and multi-stage valving designed to handle the demanding conditions cabovers face. The shocks are tested to withstand continuous use with loaded trailers and maintain performance on rough roads, construction sites, and highway conditions. Most units carry a minimum 50,000-mile warranty under normal commercial use.

Do I need special tools or can I install these myself?

Installation typically requires basic hand tools including wrenches, sockets, and possibly a floor jack to support the axle. Most experienced mechanics or fleet technicians can complete the installation in 30-45 minutes per shock. The main challenges include accessing the upper mounting bolts in the tight cabover chassis and potentially dealing with rusted hardware. We recommend having penetrating oil on hand and always replacing shocks in pairs per axle for balanced performance.

What's the difference between gas-charged and standard hydraulic shocks for my FLT?

Gas-charged (nitrogen) shocks provide superior performance for FLT cabovers by reducing fade during extended use and minimizing aeration of the shock fluid. This results in more consistent damping, especially important for the shorter wheelbase of cabover trucks which experience more aggressive weight transfer. Standard hydraulic shocks are more budget-friendly but may experience fade on long downhill grades or extended highway runs. For most commercial applications, we recommend gas-charged units for their durability and consistent performance.

How do I know when my FLT cabover shocks need replacement?

Common signs include excessive bouncing after hitting bumps (more than 2-3 oscillations), oil leakage visible on the shock body, nose-diving during braking, or uneven tire wear patterns. For FLT cabovers specifically, worn shocks often cause increased cab sway and driver fatigue due to the forward seating position. As a general rule, commercial truck shocks should be inspected every 50,000 miles and typically need replacement between 100,000-150,000 miles depending on application and road conditions.