In the past, replacing struts required specialized tools to compress, remove and transfer the old spring and mount.  Pre-assembled with all new parts, our complete strut and spring assemblies make this job much quicker and easier for the do-it-yourself mechanic.

Each complete strut & spring assembly contains:

  • Upper Strut Mount
  • Strut Bearing
  • Coil Spring
  • Boot & Bumper Kit
  • Gas-charged Strut 
Direct Fit

Direct fit replacement; not only will the part fit correctly, but it will function correctly.  Many competitors combine applications to cut down on the amount of parts they have to carry. This can result in the following issues: incorrect vehicle height, poor response and an uncomfortable ride.

Rigorously Tested

Rigorously tested and made from higher quality materials than the competition. Our parts are built to have a longer life in any environment or road conditions.

Pre-Assembled

Pre-assembled, loaded strut & spring assemblies allow for a quicker, safer install than replacing with just bare struts. 

Trouble-Free Install

Trouble-free install includes the matched parts needed to get the job done. New mounts, bearings, springs and hardware will provide a better ride for your vehicle and save you time from not having to do the job again because a used part failed afterwards.

Matched Parts

When you buy the kit pre-built by us, you can be sure that the parts are matched for optimum performance.  Not all shocks and struts are manufactured the same, so mixing and matching can result in fit issues and potentially decrease the life of the parts.

Saves Time & Money

When you buy one of our kits, you not only save money over buying the parts individually, but you also save time having to search for all of the different parts that are correct for your vehicle (because we did it for you!)

Lifetime Warranty

This item is backed by a Limited Lifetime Warranty. In the event this item should fail due to manufacturing defects during intended use, we will exchange the part free of charge (excludes shipping charges) for the original purchaser. Please keep your invoice for proof of this warranty.

  1. step : Removing the Wheel (0:29)
    • Loosen the 19mm lug nuts with the vehicle on the ground
    • Raise the vehicle with a floor jack
    • Secure the vehicle on jack stands
    • Remove the lug nuts
    • Pull off the wheel
  2. step : Removing the Strut and Upper Control Arm (2:21)
    • Remove the pinch bolt from the upper ball joint with an 18mm socket, ratchet, and 18mm wrench
    • Leave the nut flush with the end of the pinch bolt
    • Lightly tap the pinch bolt out with a hammer
    • Remove the bolt
    • Tap out the pinch bolt
    • Spin the bolt out with the wrench and ratchet
    • Soak the two 13mm bolts on the bottom of the strut with rust penetrant
    • Remove the two 13mm bolts
    • Remove the three 18mm bolts and on 18mm nut from the top of the strut while holding the shock for the last bolt
    • Unclip the A/C line
    • Remove the strut and upper control arm from the vehicle
  3. step : Removing the Upper Control Arm (5:02)
    • Remove the 18mm bolts from the upper control arm
    • Remove the upper control arm from the strut mount
  4. step : Installing the Upper Control Arm (6:26)
    • Insert the upper control arm into place
    • Hand-tighten the 18mm bolts and nuts
  5. step : Installing the Strut and Upper Control Arm (7:02)
    • Insert the assembly into the vehicle
    • Hand-tighten the five bolts on top of the strut
    • Torque the four bolts to 83 foot-pounds
    • Clip the A/C line into place
    • Install the bottom 13mm strut bolts
    • Torque the bottom bolts to 18 foot-pounds
    • Line the upper control arm into the steering knuckle
    • Reinstall the pinch bolt
    • Tighten the 18mm bolt and nut
    • Torque the bolt to 44 foot-pounds
  6. step : Simulating the Ride Height (9:23)
    • Jack up underneath the lower control arm to set the suspension to the normal position
    • Tighten the 18mm bolts to the upper 18mm control arm bolts
  7. step : Reattaching the Wheel (10:09)
    • Slide the wheel into place
    • Start the 19mm lug nuts by hand
    • Tighten the lug nuts preliminarily
    • Lower the vehicle to the ground
    • Tighten the lug nuts to 100 foot-pounds in a crossing or star pattern

Tools needed for replacement:

    General Tools

  • Jack Stands
  • Hammer
  • Floor Jack

  • Materials, Fluids, and Supplies

  • Rust Penetrant

  • Ratchets & Related

  • Ratchet
  • Torque Wrench
  • Socket Extensions
  • 1/2 Inch Breaker Bar

  • Sockets - Metric

  • 18mm Socket
  • 13mm Socket

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Browse 2 questions Browse 2 questions and 2 answers
What brand are these parts?
Annette W on Nov 14, 2017
BEST ANSWER: We have a few different aftermarket companies build these parts specifically for us, as our 1A Auto house brand. They are manufactured to the same OEM specifications as the original part that came with your vehicle. If you have any further questions, please don't hesitate to ask.
i have an 07 CTS with the sport package. I don't mind going to the FE1 soft ride. Will these fit? and are they the same monotube strut design as oem? Thanks
mike g on Apr 30, 2018
BEST ANSWER: We recommend that you only replace like parts on your vehicle. They may not mount on the vehicle and may cause other issues with different systems on the vehicle. Thanks!

Vehicle Fit

  • 2003-2007 Cadillac CTS Front & Rear Shock & Strut Kit 4 Piece Set for Models with RPO Code FE1 (Soft Ride Suspension) (excluding Automatic Leveling Suspension)

This part replaces:

  • Monroe 39114
  • KYB 553603
Part #: 1ASSP01562


How-to Video:

(12:02 min)