Collection: Strange Engineering Suspension

Who Strange Engineering is

Strange Engineering is a drag racing parts maker based in Morton Grove, Illinois. Its website lists rear ends (Ford 9 inch, Dana 60 and 12 bolt), axles, driveshafts, gears and spools, drag race brakes, and a suspension and steering line of shocks, struts, coil springs and steering parts. The company says it has supplied speed enthusiasts for more than half a century, and its Pro Race axles trace back to NHRA Top Fuel and Funny Car racing.

On Lower HQ we carry the suspension and steering side of that catalog. These are drag parts first: shocks and struts valved and adjustable for launching hard, light coil-over springs, and racks for dragsters and door cars. Several bolt-in shocks also suit street and strip Mustangs, Camaros and Mopars.

Strange product lines we carry

Counts and prices are from our store in October 2026.

One more listing, Strange brake floater wheel bearing cones ($115.99), belongs to the brake side of the catalog.

How to choose between Strange's lines

Bolt-in shocks: street and strip cars

Strange's site describes its aluminum bolt-in shocks as factory-style installs that can be re-valved later. On our store the $372.99 bolt-ins (S5042, S5044, S5046, S5064, S5067, S5081, S5082) cover Mustang, GM and Mopar applications, and several listings state 19 valve settings in a double adjustable design. The $227.99 units (S5263, S5264, S5270) are a lower-cost option, with the S5264 listed for 1980 to 1988 models and the S5270 for 1992 to 2002 Chevrolet and Pontiac models. Choose a bolt-in if your car still uses its factory spring and shock layout.

Single vs double adjustable coilovers

A single adjustable shock changes one setting with one knob. A double adjustable shock lets you set compression and rebound separately, which is what you want when tuning how the car squats on launch versus how fast it settles. Single adjustable aluminum coilovers cost $227.99 to $304.99 on our store, and double adjustable units cost $408.99 to $654.99. Strange's site lists its aluminum coil-overs for Pro Mod and Sportsman drag racing and notes that springs are sold separately.

Picking a spring rate

Our Strange springs are listed by rate, from 85 lbs/in up to 350 lbs/in. Strange's site says its spring line is Hyperco, cold-wound from chrome silicon wire with a stated rate tolerance of plus or minus 2 percent. Match the spring's inner diameter and length to your shock, then pick the rate from corner weight and motion ratio. Our spring rate calculator is a good starting point, and spring rate explained walks through the math.

Steering racks

The 12:1 dragster rack (S3442) is listed at 2.88 lbs. Door car racks (S3448 series) are aluminum, with one listing stating 19.5 inch tie rod centers and 4.75 inches of rack travel, and another stating a 22 to 1 ratio. Measure your chassis before ordering, because rack length and pinion angle have to match the car.

Fitment coverage

• Ford Mustang: bolt-in shocks, 2011-up front strut ($214.99), coil-over sleeve kit and coilover shocks. See Mustang suspension.
• Chevrolet Camaro and Pontiac: a 1993 to 2002 Camaro adjustable rear shock ($219.99) and the S5270 for 1992 to 2002 Chevrolet and Pontiac models. See Camaro suspension.
• GM and Mopar classics: bolt-in shocks for 1986 to 1996 GM and 1965 to 1978 Dodge and Plymouth.
• Race cars: coilover shocks, springs and racks for purpose-built chassis, where fitment depends on your brackets and measurements.

What else you'll need

• Springs for coilover shocks. Strange sells them separately. Browse ours here or on the coil springs page.
• Spanner wrenches and spring seat bearings for setting preload on coilovers.
• Tie rods and alignment parts when swapping racks. See tie rods and camber plates.

Strange compared with alternatives we carry

QA1 is the closest alternative on our store, with 269 listings including coilover conversion systems and Mod Series coilover shocks up to $1,108.99. QA1 leans toward complete street and road course coilover systems, while Strange is the drag-focused choice. Koni (46 listings, $140.99 to $408.99) covers street, classic and oval track shocks. Pick Strange if the car spends its weekends at the drag strip.

Warranty terms are set by each brand.

Popular picks

• Strange Bolt-In Shock S5042, $372.99: double adjustable Mustang shock with 19 valve settings.
• Strange Double Adjustable Aluminum Coilover S5048, $416.99: Mustang coilover shock, 20.10 inches extended.
• Strange Single Adjustable Aluminum Coilover S5248, $304.99: for 1994 to 2004 Mustangs, hardware included.
• Strange Adjustable Rear Shock, 1993 to 2002 Camaro, $219.99: for fourth-gen F-body drag cars.
• Strange coil-over spring SP80200A, $121.99: 200 lbs/in.
• Strange 12:1 Dragster Steering Rack S3442, $477.99: light, quick rack for dragsters.

Related guides

• Shocks vs struts
• How to adjust coilovers
• Mustang lowering springs by generation

Sources

• Strange Engineering home page
• Strange Engineering shocks, struts and steering