Why is Scott’s Hotrods Rear Suspension Different?  

Our 4-Bar Rear Suspension Kits are truly Equal-Length Parallel 4-Bars that use a Panhard Bar to control lateral movement.  Using a very long Panhard Bar perpendicular maximizes efficiency and reduces lateral movement throughout the travel.  Our kits come complete with a shock Crossmember allowing you to determine final ride height when installing.

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Most hot-rodder’s upgrade their front suspension but forget to address their rear suspension, which is just as important to the ride and handling of their car. Oftentimes so much focus is spent on the front suspension of a hot rod that it can actually reduce the drivability of the vehicle because of excessive rake or unmatched spring rates. Simply put, Leaf Springs Suck.

Scott’s Rear Suspension is quite simply….simple. The 4-Bar Rear Suspension Kit is designed to be both user-friendly and fully adjustable at the same time.  We use our CNC Machined & Tapped Stainless Steel Rod Ends with right-hand or left-hand thread. This allows the user to adjust the pinion angle and set it up without unbolting the link bars. The same 1-1/8”x .250-wall, DOM tubing is used for the Link & Panhard bars. All bars are CNC machined in-house by Scott’s to maintain the strictest quality control in manufacturing.

Scott’s Equal-Length Parallel 4-Bar Kit’s simple design will greatly improve the ride quality and handling of your hot rod or custom.  The parallel bar design works very well for all applications. The Pinion Angle does NOT change throughout the travel of the suspension, unlike a Triangulated 4-Link system.  A Triangulated 4-Link has inherent design flaws as the pinion angle changes as the suspension travels up and down, which can lead to poor cornering, especially on uneven pavement.

Coilovers OR Airbags, your choice.  Coilovers are the most popular for everyday cruisers and Airbag kits are for those who want to lay their vehicle on the ground.  We offer a C-Notch for Low Coilover kits and a full Step Notch for bagged kits.

A Panhard bar is used to control the lateral movement of the rear suspension.  Scott’s 4-bar kits utilize a bar as long as possible per vehicle application to ensure the least amount of lateral movement.

You can also step up your game with a Scott’s Watt’s Link and eliminate lateral movement altogether.  A Watt’s Link utilizes a mount off the rear end housing directly in the center.  It uses 1 arm above and 1 arm below the center pivot point.  These arms attach to either side of the vehicle’s frame.  This keeps the rear end dead center as the vehicle suspension travels up and down, no matter if the vehicle is leaning in either direction.

Airbag 4-Bar Kits Starting at $2,747

  • 1”-1/8”x1/4”-wall DOM tubing link bars (adjustable RH- & LH-Thread)
  • Stainless Steel CNC Machined Rod Ends – RH- & LH-Thread
  • 1”-1/8”x1/4”-wall DOM tubing Panhard bar (adjustable RH- & LH-Thread)
  • FK Bearing Heim Joints – RH- & LH-Thread
  • Slam Specialties TS-6 Tapered Air Springs
  • RideTech HQ Single-Adjustable Shocks
  • Upper Shock crossmember – standard on all kits
  • Rear-end housing brackets
  • Front frame brackets
  • Upper & Lower Bag Plates
  • 5/8” Grade 8 Hardware

Scott's Hotrods 4-Bar Pricing 2023

COILOVER 4-BAR KIT4-Bar Rear Suspension, Aldan Single-Adjustable Coilovers, Link & Panhard Bars, Rod Ends, Brackets, Shock Crossmember, Grade 8 Hardware$2,093
Double-Adj AldanDouble-Adjustable Aldan Coilovers+$550
RideTech CoiloversRideTech Single-Adjustable Coilovers+$750
RideTech Triple-Adjustable Coilovers+$1,850
SuperSlam 4-BAR KITSlam Specialties TS-6 Tapered Air Springs & RideTech HQ Single-Adjustable Shocks$2,747
Watt's LinkScott's Watt's Link+$1,050
Sway BarTorsion Spline Sway Bar, Rear+$770
C-NotchC-Notch for Low Coilover Ride Height, FB-2668+$184
Step NotchSingle-Bend Step Notch for bagged vehicles, FB-1001+$450
Triple-Bend Step Notch for bagged vehicles (Customer to Supply Specs)+$550
Moser Rear EndFord 9 w/31-spline axles$1,475
M9 FAB w/35-spline axles$1,700
Auto-Cross Ford 9 (Full-Floater)$3,000
Auto-Cross M9 FAB (Full-Floater)$3,240
Back Brace$250
Truetrac 3rd member (31-spline)$1,980
Wavetrac 3rd member (35-spline)$2,160
Wilwood Rear Disc11 D&S Wilwood Kit, Red or Black$1,067
12 D&S Wilwood Kit, Red or Black$1,082
13 D&S Wilwood Kit, Red or Black$1,963
14 D&S Wilwood Kit, Red or Black$2,135
AERO414 D&S Wilwood Kit, Red or Black AERO4 Caliper$2,294

A qualified professional mechanic or fabricator with the technical understanding of product function and installation procedures must install all Scott’s Hotrods products.

We stand behind ALL of the parts we manufacture.  Other parts that we do not manufacture such as brakes, steering racks, ball joints, brake flex lines, power steering lines, etc carry their own manufacturer’s warranties.  We are not responsible for these items outside of their original warranty.

All of Scott’s Hotrods manufactured parts are guaranteed to be free of defects in materials & workmanship for the lifetime of the part. Scott’s Hotrods warranty is non-transferable.

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