UMI Performance Stage 3.5 Handling Kits FBF035-R

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