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#9109532
1947-54 Chevy Pickup Front Suspension/Brake Kit, M-II/Rack Steer
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- 100% bolt-in suspension kit with crossmember for 1947-1954 Chevy 1/2 and 3/4 ton trucks allows even novice hot rodders the ability to construct a custom quality frame and suspension with basic hand tools
- Tubular upper and lower control arms are made from full .120” wall thickness 1" diameter tubing and come complete with greaseable ball joints installed for quick and simple installation
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Product Summary
47-54 GMC, 47-54 Chevy, IFS Front Suspension Type
- 100% bolt-in suspension kit with crossmember for 1947-1954 Chevy 1/2 and 3/4 ton trucks allows even novice hot rodders the ability to construct a custom quality frame and suspension with basic hand tools
- Tubular upper and lower control arms are made from full .120” wall thickness 1" diameter tubing and come complete with greaseable ball joints installed for quick and simple installation
- QA1 aluminum coilover shocks are fully adjustable and allow for both ride height and shock damping stiffness adjustments to suit your personal needs
- Our complete front suspension kit modernizes your classic Chevy truck with independent front suspension, disc brakes and rack-and-pinion steering to provide a luxurious driving experience
- Lowers the trucks ride height by 2 to 4 inches which is adjustable to your preference in height within that range allowing you to dial in the perfect stance
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Key Specs
Front Suspension Type | IFS |
Suspension Height Adjustment | 2.0-4.0 Inch Lowered |
Control Arm Style | Tubular |
Shock Type | Single-adjustable |
Spring Type | Coilover |
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Speedway Motors 9109532 Details
- Complete bolt-in solution for 1947-1954 Chevy truck 1/2-ton and 3/4-ton models
- No welding required, main crossmember, boxing plates, and spring towers bolt to frame
- Complete IFS suspension kit engineered for modern handling, steering, and braking
- Includes tubular upper and lower control arms with QA1 single adjustable coilover shocks
- Your choice of coilover spring rate, from 375-700 lb/in, for the perfect ride
- Lowers ride height 2-4 inches from stock without compromising ride quality
- Features GM Metric 11-inch disc brakes that can be easily serviced through any parts store
- Choose from new, not rebuilt, manual or power rack-and-pinion steering assemblies
- 7/8-inch bolt-in front sway bar ensures proper handling in the corners as well
- Includes rubber brake hoses (uses standard 3/16-inch brake line) and mounting fasteners
- Works extremely well when paired with our 1947-1954 bolt-in rear suspension system
- Bolt-in motor mounts for small block Chevy and LS V8 engines available for crossmember
Modernize your 1947-1954 Chevy Truck 3100 or 3600 Model with a True Bolt-In Independent Front Suspension
In the late 1940s pickup trucks were still very much being used as pickup trucks. From hauling around the farm to making deliveries, the pickup truck of the 1940s and 1950s was very utilitarian. They were built to handle heavy loads and rough roads and it was accepted that it “rode like a truck” because, well, it was a truck! These 1947-1954 Chevy truck 1/2 and 3/4 ton pickup models rode on a leaf spring suspended solid front axle, providing payload capacity combined with ease of manufacturing while keeping costs low. It would be decades before GM introduced an independent front suspension (IFS) for its line of pickup trucks. Today you can easily convert your 1947-1954 Advance Design 3100 or 3600 pickup to IFS and enjoy the benefits that an IFS suspension kit brings to the table along with disc brakes, rack-and-pinion steering, and much more.
When considering whether to rebuild your 70-plus-year-old bolt on front suspension versus upgrading to an IFS setup, many will place cost and the need to weld the IFS crossmember or front frame stub at the top of their list as to why it is too difficult to tackle the conversion. However, once you really dig into that straight axle setup, replacing the leaf springs, shackles, and bushings, along with new kingpins (which will require a trip to the machine shop for proper reaming and installation) to remove all the slop in the system, you’re still left with a straight axle front end that will not handle nearly as well as an IFS, which as its name implies, allows the left and right front suspension to act independently from each other over road irregularities. Unlike the solid axle setup, where movement of one side affects the opposite side and causes severe bump steer issues. Add in new shocks, rebuilding or replacing your steering box, and the costs get closer to being less of a deterrent. But what about all that welding mess? Well, we’ve made that a moot point as well since our 1947-1954 Chevy truck IFS crossmember is a true, complete bolt in. Basic hand tools and a drill will get your Chevy IFS suspension kit swap handled in no time flat.
A Mustang II IFS Crossmember That Requires Zero Welding for Installation
Historically, if you wanted to utilize a Mustang II type crossmember in your hot rod or muscle car, it required extensive trimming of your factory frame rails and welding of the crossmember, spring towers, and other bits to your modified frame. Sans the proper welding equipment and the skill to weld, many enthusiasts would have to have the installation performed elsewhere at additional cost. We wanted to make the addition of an IFS to the 1947-1954 GM 1/2 and 3/4 ton trucks something the average wrench turner could install themselves in a weekend with nothing more than a drill and some hand tools. Our 1947-1954 Chevy truck Mustang II IFS crossmember, spring towers, and frame boxing plates are designed to not only bolt in, but interlock each other as well, creating a super strong chassis design. This kit was featured on our 1952 Chevy pickup build for Classic Truck’s Week to Wicked. Watch an overview of this suspension kit in The Toolbox!
Our Mustang 2 frontend kit features strong tubular upper and lower control arms made from 1-inch steel tube with .120-inch wall thickness that provide a modern fit and look with additional clearance for larger wheel and tire packages along with an enhanced turning radius over standard stamped arms and strut rods. The included forged Mustang II spindles are stock height, which places the spindle pin at 1/2 inch below the frame rail for a 2- to 4-inch drop over the stock solid axle bolt on suspension. An optional two inch drop spindle will set the spindle pin at 1-1/2-inch above the frame rail if you are looking for that ultra-low stance. The QA1 18-way single adjustable aluminum shocks adjust compression and rebound simultaneously and are married to your choice of chrome coilover spring rate (from 375 to 700 lb/in rate) to provide a smooth ride and adjustable ride height. The built in coil spring seat adjusters allow additional ride height adjustment directly on the crossmember as well.
Add Disc Brakes and Rack-And-Pinion Steering to Tackle Today’s Busy Roads
Upgrading your 1947-1954 GM 3100 or 3600 pickup with our 100 percent bolt in Mustang 2 frontend kit provides the proper mounting points for our GM Metric single piston calipers and 11-inch vented disc brake rotors with 5x5.75 bolt pattern. We also include brake hoses, and all bearings and hardware. This is an excellent brake package that will handle today’s driving needs and highway speeds. Pair it with our direct fit 1947-1954 Chevy truck power brake booster, pedal, and master cylinder kit for an easy power disc brake solution.
The Mustang 2 frontend IFS suspension kit utilizes precise rack-and-pinion steering (your choice of brand new, not remanufactured, power or manual racks is included). Combine this modern steering solution with a direct fit tilt steering column and you’ll have the most modern steering system available for your classic Chevy pickup. We offer an optional bump steer kit to correct any potential bump steer issues when lowered aggressively. A 7/8-inch solid front sway bar provides crisp handling assist to your steering system too when the road gets curvy. Hub-to-hub width is 56-1/2-inches.
Everything Included for a Successful Weekend of Wrenching
Our 1947-1954 Chevy truck Mustang II IFS kit is one of the most complete and easiest to install IFS suspension kit conversions for these trucks on the market. You will find everything you need to install a complete hub-to-hub bolt on front suspension system in your classic pickup truck. The crossmember, control arms, spindles, calipers, rotors, caliper brackets, and outer tie rods are plain/bare finish and can be painted or powder coated at the installer’s discretion. Engine mount options include small block Chevy and GM’s popular LS family of engines. Finish off your Chevy IFS installation with our 1947-1954 Chevy truck bolt-in transmission crossmember and pair your Chevy IFS install with our matching four-link rear bolt on suspension kit (also used on the Week to Wicked 1952 pickup build) for the ultimate in handling.
Kit Includes:
- (1) Bolt-In 1947-1954 Chevy truck Mustang II crossmember
- (1) Set of standard tubular upper and lower control arms
- (1) Set of coilover shocks with your choice of springs
- (1) Pair of stock height forged Mustang II spindles
- (1) Mustang II coil spring ride height adjuster kit
- (1) Mustang II power or manual rack-and-pinion
- (1) GM Metric caliper 11-inch disc brake kit
- (1) Heidts Mustang II 7/8-inch diameter sway bar kit
- Wheel bearings, seals, brake hoses, mounting fasterners
Guides & Documents
Speedway Motors 9109532 Specifications
Speedway Motors 9109532 Specifications
KEY SPECS | |
---|---|
MFG. Part # | 9109532 |
Brand | Speedway Motors |
Front Suspension Type | IFS |
Suspension Height Adjustment | 2.0-4.0 Inch Lowered |
Control Arm Style | Tubular |
Shock Type | Single-adjustable |
Spring Type | Coilover |
Finish | Natural |
Bolt Pattern | 5 on 4.75" |
Rotor Diameter | 11 Inch |
Spindle Style | Ford Stock |
Dropped Spindles | No |
Dropped Axle | No |
Dropped Control Arms | No |
Spindles Included | Yes |
Brakes Included | Yes |
Steering Included | Yes |
Caliper Pistons | One |
Caliper Finish | Natural |
Shock Adjustability | Single Adjustable |
Hardware Included | Yes |
Rotor Shape | Round |
Rotor Type | Vented |
Welding Required | No |
GENERAL | |
Spring Finish | chrome |
Rotor Thickness | 1" |
Stud Diameter | .4375" |
Sold in Quantity | Kit |
Thread Pitch | 7/16"-20 |
Frame Brackets Included | Yes |
Mounting Hardware Included | Yes |
Brake Lines Included | Yes |
Brake Pads Included | Yes |
Calipers Included | Yes |
Coilover Springs Included | Yes |
Crossmember Included | Yes |
Rotors Included | Yes |
Lower Ball Joints Included | Yes |
Lower Control Arms Included | Yes |
Upper Control Arms Included | Yes |
Lower Trailing Arms Included | Yes |
Outer Tie Rod Ends Included | Yes |
Spindle Type | Stock Height |
Front Sway Bar Included | Yes |
Upper Ball Joints Included | Yes |
Wheel Studs Included | Yes |
Control Arm Finish | Natural |
Control Arm Material | Steel |
Front Sway Bar Diameter | .8750" |
Front Rotor Diameter | 11" |
Crossmember Color | Natural |
Control Arm Color | Natural |
Front Caliper Color | Natural |
Spindle Material | Forged Steel |
Front Caliper Material | Cast Iron |
Front Caliper Piston Quantity | One |
Steering Rack Type | Power or manual, customer chooses when ordering |
Spindle Finish | Natural |
Rack Finish | Plain |
Front Caliper Included | Yes |
Front Rotor Included | Yes |
Disc Brake Kit Included | Yes |
Front Rotor Style | Plain Face |
Crossmember Material | Steel |
Front Rotor Construction | Cast Iron Vented |
Front Spindles Included | Yes |
Rack and Pinion Included | Yes |
Shocks Included | Yes |
Sway Bar Bushings Included | Yes |
Wheel Diameter | 15 Inch |
Wheel Stud Thread Size | 7/16"-20 |
Bushing Color | Black |
Bushing Material | Polyurethane/Rubber |
End Link Bushings Included | Yes |
Front Sway Bar Type | Solid |