Coil springs offer a much greater range of movement (articulation) and a smoother ride because they have less internal friction than leaf packs.
The split between the Hilux (pickup) and 4Runner (SUV) is most apparent in their rear suspension setups.
The Evolution of Toyota’s Mid-Size 4WD Suspension: IFS and Rear Coil Springs 4wd hilux & 4 runner ifs & rear coil springs
This change significantly improved highway stability, handling, and ride quality. It also allowed the front differential to be tucked higher within the frame, which can actually improve center ground clearance.
A common characteristic of early coil-sprung 4Runners is "rear sag," where the factory springs lose their tension over time or when loaded with gear. This has led to a massive aftermarket for Old Man Emu (OME) or Toytec replacement springs to restore ride height and load capacity. Summary of Differences 4WD Hilux (Typical) 4Runner (Post-1990) Front Suspension IFS (Torsion Bar or Coil-over) IFS (Torsion Bar then Coil-over) Rear Suspension Leaf Springs Multi-link Coil Springs Primary Goal Payload & Towing Ride Comfort & Articulation Common Mod Heavy-duty Leaf Packs Lift Coils / Sag Correction Coil springs offer a much greater range of
Designed primarily as a load-carrying vehicle, the Hilux has largely stuck with rear leaf springs . Leaf springs excel at distributing heavy payloads across the chassis and provide superior towing stability.
The mid-1980s marked a radical shift in how Toyota approached its 4WD lineup, moving from rugged, utilitarian workhorses toward versatile vehicles that balanced off-road capability with on-road comfort. This evolution is most prominent in the transition from solid axles to and the move from leaf springs to rear coil springs . The Move to Independent Front Suspension (IFS) It also allowed the front differential to be
For years, the Toyota Hilux and early 4Runners relied on solid front axles (SFA) for their legendary durability. However, in 1986, Toyota introduced the to the 4WD Hilux and 4Runner .