In Stock & Ready to Freight Suspension

UMI Performance Stage 3.5 Handling Kits FBF035-R

Brand: UMI Performance
Condition: New
€1,638.52
+ freight from €89.00, insured road freight, priced by delivery region (rates)
From €1,727.52 delivered
  • ISPM 15 heat-treated Euro palletized & weatherproof shrink-wrapped
  • Insured European road freight delivery with hydraulic tail-lift service
  • Dispatches in 1–2 business days from our UK & European Logistics Centre
  • Transit typically 1–3 business days (UK) / 3–6 business days (Continental Europe)
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Details & Inspection Notes

FBF035-R is UMI's Stage 3.5 package built for A-Body muscle cars, pairing a 1" front lowering spring with a 1.313" front sway bar, the largest diameter in this lineup, and a tubular, adjustable rear sway bar. Front shocks are RideTech HQ adjustable coilovers, while the rear runs a gas-charged adjustable monotube shock instead of a matching coilover.

What's in the kit

Front control arms and the rear lower control arm are tubular steel on Delrin bushings, and the rear upper control arm adds a roto-joint for adjustability, with tubular frame braces and Grade 8 hardware rounding out the package. UMI's notes pair 650 lbs. front coilover springs with a 2 in. drop, 175 lbs. rear leaf spring, so the front and rear ends are tuned differently by design.

Common questions

Does the rear keep leaf springs? Yes, this kit pairs a front coilover conversion with a rear leaf spring rated for a 2 in. drop.

Is the rear sway bar adjustable? Yes, UMI lists it as a tubular, adjustable rear sway bar.

Specifications

Feature Details
MFG. Part # FBF035-R
Brand UMI Performance
Vehicle Compatibility A-Body Muscle Cars
Lowering Springs Yes (1″ drop)
Front Shocks Included Yes (RideTech HQ Adjustable Coilovers)
Rear Shocks Included Yes (Gas-Charged Adjustable Monotube)
Front Sway Bar Diameter 1.313″ (33.34mm)
Rear Sway Bar Included Yes (Tubular, Adjustable)
Front & Rear Control Arms Tubular Steel with Delrin Bushings
Frame Braces Yes (Tubular, with Hardware)
Adjustable Upper Control Arms Yes (Rear, Roto-Joint)
Lower Control Arms Yes (Rear, Tubular)
Bushing Material Delrin & Roto-Joint
Hardware Included Yes (Grade 8)
Installation Type Direct Bolt-On
Quantity Sold as a Kit

Suspension Setup & Installation Checklist

  • Inspect top mounts, damper seals, bushings, and ball joints prior to fitment.
  • Set initial spring preload, collar heights, and damper rebound clicks symmetrically left to right.
  • Torque all suspension control arm pivot bolts while the vehicle is at resting ride height (loaded suspension).
  • Perform a complete 4-wheel laser alignment once ride height has settled to ensure optimal handling and tire wear.

Full terms: 30-day warranty · returns