1947-54 Chevy Pickup Front Suspension/Brake Kit, M-II/Rack Steer

As featured on our 1952 Chevy Pickup for Classic Truck’s Week to Wicked. Watch the transformation here!

Spindles

• Heat treated forged steel spindle that retains stock factory geometry
• Direct replacement for 1974-1980 Pinto/Bobcat and 1974-1978 Mustang II
• Uses all stock rotors, bearings, calipers, etc
• Stock height

 

Coilover Shocks with Springs

• For unmatched ride quality for the street and strip, turn to QA1’s Mustang II Coil-Over Shocks
• Stock appearance
• Steel Body
• Simple bolt-in installation
• Coil-Over Capable
• Adjustable ride height
• Mount is Stock 7/16" I.D. Bolt Hole, Bushing
• Chrome silicon spring material
• 8 1/8" free length
• Polished & chrome plated finish
• Choose your desired spring rate

 

Calipers

• Stock replacement single piston Metric calipers
• Standard equipment on 1978-88 GM mid-size cars (Cutlass, Grand Prix, Regals, Monte Carlo, etc.)
• Feature a 2.375" single piston, shielded bottom inlet
• Will save 3-1/2 lbs. per side compared to mid-size 1969-1977 caliper
• No core charge required
• 7/16"-20 inlet
• 5-1/2" Mount Spacing
• Utilizes GM metric style D154 brake pads

 

Brake Pads

• Speedway soft brake pad for GM Metric 1978-Up

Tech Tip:  Only use full metallic pads on coated rotors.

Learn how to properly Bed-In your brake pads by reading our tech article.  Bedding-In Brake Pad Procedure.

 

Rotors

• Vented stock 11" diameter brake rotors for 1974-1980 Mustang II, Pinto, or Bobcat spindles (or popular GM Metric calipers and brackets)
• Brake rotors are new, not plugged or re-drilled
• Has a 5 on 4-3/4" bolt pattern with corresponding 7/16" diameter fine thread wheel studs
• 5 on 4.75" Bolt circle
• Granada type rotor

 

Control Arms

• Stock Width
• For Coil-Over Shock
• Upgrade to a cleaner looking control arm
• Full .120" wall, 1" diameter fixture welding tubing
• Features screw-in ball joints and no-squeak bushings
• Works with nearly any stock or aftermarket crossmember
• Welding may be required on some applications
• Designed to correspond with coil-over style springs and shocks
• Works with Mustang II crossmembers that come without lower A-Arm tabs
• Non-strut rod applications

 

Crossmember

Our bolt-in Mustang II suspension kit for 1947-1954 Chevy half-ton and 3/4 ton pickups includes all hardware and instructions. 

• Completely bolt in - no welding required
• Based on proven Mustang II geometry
• Complete with bolt in boxing plates to reinforce the frame
• Interlocking design for ultimate strength
• Threaded adjusters to fine tune ride height
• Full lower A-arms required with this crossmember (strutless type)
• Requires the use of a power rack and pinion and tubular control arms
• NOT for use with air ride

Parts List (PDF)

Note:  Use bolt-in motor mount kit 910-54754 to mount your S/B Chevy.

 

Sway Bar

• For 1947-54 Chevy pickups
• Includes urethane mount and end-link bushings
• For use with tubular arms that include end link mounting tabs
• Hardware included
• Used in conjunction with standard width lower control arms

 

Steering Rack

• Fits aftermarket Mustang II crossmembers
• Available in manual or power steering
• Mount bushings are included with the Power version, but mount bushings are NOT included in the Manual version

MANUAL: 

• New manual rack and pinion steering assembly for Pinto/Bobcat/Mustang II based front suspensions in street rods and kit cars
• 9/16"-26 spline input shaft
• 16" mount centers
• We suggest the Sweet brand u-joint 910-3247 or 910-3227
• The Unisteer U-joint tends to run big on this joint
• Features 14mmx1.5 thread for inner rack extensions, # 910-34345-MAN suggested

POWER: 

• New power rack modeled from the 1982-88 T-bird design which will work with aftermarket Mustang II crossmembers
• Bushings included
• (Can be used with a Saginaw GM power steering pump without any additional valves or inline pressure regulators)
• Overall width is 45-1/8" with 15-1/2" mount centers
• Must use offset bushings (910-34342) to mount to original Mustang II crossmembers
• 3/4"-36 spline input shaft
• Uses 910-4047 -6AN adapter fittings
• Rack has 9/16"-18 female o-ring high pressure inlet and 5/8"-18 female o-ring low pressure outlet return line threaded ports
• Replacement sku for rack and pinion hard lines is 910-35344

 

Tie Rods

• Outer tie rod and inner extension fits left or right, attaches steering rack to spindle
• Fits both manual Mustang II and 1982-1988 T-Bird power racks
• Replacement boot available as # 910-913101
• Cast steel construction for strength
• Grease zerk for service as needed
• 9/16"-18 R/H female thread
• 3.40" long from stud centerline to end
• All new hardware for a complete install

 

Kit Includes:

• (1) Heidts SB-054 Mustang II Stabilizer Sway Bar Kit
• (1) Bolt-In 1947-54 Chevy Pickup Mustang II Crossmember
• (1) Set of Standard Tubular Control Arms
• (1) Set of Coilover Shocks with Springs
• (1) Pair of Stock Spindles
• (1) Mustang II Coil Spring Ride Height Adjuster Kit
• (1) Mustang II Power or Manual Rack & Pinion
• (1) GM Metric 11 Inch Disc Brake Kit

910-34307 Instructions (PDF)

Brake Pad Brand Guide (Link) 

910-35335 Tubular Lower Control Arm Instructions (PDF)

910-35320 Tubular Upper Control Arm Instructions (PDF)

Tubular Control Arms Application Chart (GIF)

Tubular Control Arm Chart (GIF)

Mustang II Manual Rack Bolt Kit Installation Instructions

910-44754 Instructions (PDF)

Spring Rate Chart (Link)