Product Summary

Universal Fit, Solid Axle Rear Suspension Type

  • Front (chassis/frame end) of these ladder bars make use of 3/4" RH threads and the rears (axle end) make use of 5/8" RH threads
  • The four-bar rear axel brackets have an exclusive sandwich-style to give greater bar support and incorporate a multi-position lower coil-over mount
  • Steel RH male heim joints feature a spherical bearing rod end
  • Jam nuts are made from plain steel and are .41" thick
  • Mounting eye on the rod ends is offset 11° from perpendicular to threaded shank

Comes as a Kit

Key Specs

BrandSpeedway Motors
Rear Suspension TypeSolid Axle
Trailing Arm StyleRadius Rod

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Give your street rod a complete rear suspension with thissingle universal kit from Speedway Motors.

Kit Includes:

  • (1) Rear Ladder Bar Set - 38" Long
  • (1) 4-Bar Rear Axle Bracket Set
  • (2) Carbon Steel Heim Joints - 3/4"-16 RH
  • (2) Thin Steel Jam Nuts - 3/4"-16 RH
  • (4) Stainless 4-Bar Rod Ends - 5/8"-18 RH, 11 Degree
  • (4) Stainless Jam Nuts - 5/8"-18 RH NF
  • (2) Coilover Shock Mount Bolts - 4-1/2", Polished
  • (1) Instruction Sheet
  • (1) Weld-On Rear Panhard Bar/Track Rod Kit
  • (2) QA1 Street Rod Shocks
  • (2) QA1 10" Coilover Spring - 2-1/2" I.D.
  • (2) Coilover Mounting Kit
  • (1) Chassis Tab Mounting Kit
  • (1) Shock Mounting Hardware Kit

38 Inch Ladder Bars

The front (chassis/frame end) of these ladder bars make use of 3/4" RH threads and the rears (axle end) make use of 5/8" RH threads.

  • 38" long

Four-Bar Rear Axle Brackets

Exclusive sandwich-style brackets give greater bar support and incorporate a multi-position lower coil-over mount.Weld to 3" O.D. axle tubes only.

  • Lower coil-over shock mount stud not included
  • Shock mount stud hole ID - 1/2"

Steel RH Male Heim Joints

Precision steel rod ends provide greater strength than our "standard" rod ends. They have close tolerance and have a 3 piece medium duty rod end. Carbon steel body, 5210 precision ground ball and feature a Teflon Kevlar race. Self lubrication teflon liner to seal out dirt and debris. Shank and hole are the same size.

  • Spherical Bearing rod end
  • 3/4"-16 thread pitch
  • RH Male Threads
  • Steel Construction
  • Natural finish

To ease assembly, be sure to run a tap or die through the threads on chrome plated fasteners and apply an anti-seize compound to prevent galling of the threads.

Thin Steel Jam Nuts

Plain steel fine thread jam nut.Special half thickness nuts for securing steering heims to a panel or flange.

  • .41" thick
  • Hex wrench type
  • 1-1/8" wrench size
  • 3/4"-16 thread pitch
  • RH Female thread type
  • Steel construction
  • Zinc finish

Stainless Four-Bar Rod Ends

Don't settle for a weak 4-bar end made out of a piece of tubing welded to a bolt. These Speedway rod endsare made fromfully polished investment cast stainless steel for superior strength and durability. Allrod ends featurea 5/8"-18 RH threaded shank and the nylon bushing has a steel sleeve that accepts a 1/2" bolt.

  • 11° Shank
    • Mounting eye is offset 11° from perpendicular to threaded shank (with the bushing side down, the stud will be angled up at a 11° angle)
    • 5/8"-18 RH threads
  • Overall width: 1.370"
  • Rod end width: 1.050"
  • Rod endI.D.: 1.125"
  • Steel sleeve O.D.: 0.750"
  • Steelsleeve I.D.:0.500"
  • Threaded shaftlength: 1-7/8"

Stainless Jam Nuts

If you've got spherical rod ends on your vehicle, you'll probably need jam nuts. You might also need them for tie-rod ends or other types of fittings and connectors. Our jam nuts are made from premium stainless steel and they're available with right hand threads.

These stainless steel fine thread jam nuts are for use with rod ends, heim joints, and clevis.

  • 5/8 Inch-18 RH NF Fine Thread

Coilover Shock Mount Bolts

Speedway sells the ONLY fully engineered shock mount. The 5/8" forged button head bolt looks good whileoffering maximum support. The 1-3/4" x 1-3/4" billet aluminum support spacer has internal threads. This allows you to properly supportthis shock without crushing the bushing like others do, which leads to shock failures. There's a reason major chassis builders use this mount.

  • Billet aluminum
  • 4-1/2" from base of head to end of threads
  • 1-1/4" shock mount base
  • Safely mounts to brackets 1/2" thick
  • Includes required washers and nylon lock nut
  • Uses a 1/2" Allen head wrench for holding it while tightening.

Weld-On Rear Panhard Bar/Track Rod Kit

Use on almost any street rod. Required for coil spring and coil-over rear suspensions. Complete kit includes rod, brackets and 5/8" hardware. Ready to install.

  • 25.5" length
  • 5/8" hardware

QA1 Street Rod Shocks

QA1 Street Rod Seriesshock feature beautifully chrome plated1.63" OD steelbodies. Thesethree-way adjustable, gas pressurized and radial tuned shocksprovide anexcellent ride. Shock accepts7/16" or 5/8" bolt for top bushing and 5/8" bolt in bottom bushing.

  • This shock is three-way adjustable.Choose between a soft, medium, or firm ride quality.To adjust the shock, fully compress the shock and twist the shock shaft clockwise.Each "click" indicates a different firmess has been set.

QA1 10 Inch Coilover Springs

QA1 coil-over racing springs are guaranteed to remain within 2% of rate and length - forever!Springs are coil wound of chrome-silicon wire, the strongest spring steel known. Thisgives more travel and lighter weight. Heat treated and chrome plated.

  • 10 Inch height
  • 2-1/2 Inch inside diameter
  • Choose your desired rate

Coilover Mounting Kit

For coil over shocks with 1.63" O.D. body. Use with 2-1/2" I.D. springs.

  • Overall length of threaded sleeve is 4"
  • Length of threaded area is 3-3/8"
  • O.D. is nearly 2"
  • I.D. is nearly 1-11/16"

Replacement snap ring255-1930

Replacement safety clip582-525

Chassis Mounting Tabs

These weld-on chassis tabs are great for installing radius rods and ladder bar suspension components. They are 1/4" thick with a 1/2" mounting hole diameter.

  • Weld-on chassis tabs
  • 1/4" thick
  • 1/2" hole
  • Set of 8



BrandSpeedway Motors
Rear Suspension TypeSolid Axle
Trailing Arm StyleRadius Rod
Spring TypeCoilover
Shocks IncludedYes
Axle Housing IncludedNo
Lower Trailing Arms IncludedYes
Upper Trailing Arms IncludedYes
Trailing Arm Mount Braces IncludedYes
Hardware IncludedYes
Sold in QuantityKit
Welding RequiredYes