Heidts Superide II Independent Front Suspension Kits BX-307-4

Heidts' Superide II independent front suspension kit, part BX-307-4, is built for classic cars from 1935 and up and uses a Mustang II-style spindle so a front-mounted manual rack and pinion can be used for extra engine clearance. What comes with the kit A 3-piece steel crossmember bolts in without welding, carrying tubular upper and lower control arms with threaded alignment adjusters instead of the eccentric type, 2-inch drop spindles, and single-adjustable coilovers with a 500 lbs./in. spring rate in a silver powder coat. Up front, black 4-piston aluminum calipers grip vented 11-inch rotors, pads included; a sway bar isn't part of this kit. What to check before ordering Because this kit spans classic cars from 1935 onward rather than one named model, confirm your chassis dimensions and engine bay clearance before ordering, especially if you are fitting a front-mount rack and pinion for the first time. The threaded adjusters are meant to hold alignment settings more securely than older eccentric-style hardware, worth knowing if you have used a different Mustang II kit before. Does this kit require welding? No, the crossmember and control arms are designed to bolt in without welding. What is the coilover spring rate? 500 lbs./in., finished in silver powder coat. Specifications Feature Details MFG. Part # BX-307-4 Brand Heidts Vehicle Compatibility Classic Cars (1935 & Up) Independent Front Suspension (IFS) Yes Crossmember Included Yes (Steel, Natural Finish) Spindle Type 2 in. Drop Spindle Material Steel Upper & Lower Control Arms Tubular Steel Front Shock Type Single Adjustable Coilover Coilover Springs Yes (500 lbs./in., Powdercoated Silver) Steering Rack Type Manual Rack & Pinion Rack Material Steel (Natural Finish) Disc Brake Kit Included Yes (Manual or Power Assist) Front Rotor Style Solid Surface, Vented Front Rotor Diameter 11.00 in./279.40 mm Front Calipers 4-Piston Aluminum (Black Finish) Brake Pads Included Yes Sway Bar Included No Installation Type Bolt-On (No Welding Required)