Twist-In Rear Coil Spring Boosters (4-Pack)
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AutoCraft Twist-In Rear Coil Spring Boosters (4-Pack)

Part No. AC189001/18-900 Warranty Details  
Fits rear coil springs

Product Features:
  • Up to 1-1/2" lift
  • Designed to restore ride height and improve handling
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by PowerReviews
AutoCraftTwist-In Rear Coil Spring Boosters (4-Pack)

(based on 1 review)

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Reviewed by 1 customer

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(18 of 31 customers found this review helpful)


Wasn't the right one


from PA

Verified Buyer
3 or more reviews submitted

Comments about AutoCraft Twist-In Rear Coil Spring Boosters (4-Pack):

The exact fit was not correct. Doube check before you buy, but still an easy return

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3 Questions | 3 Answers
Displaying questions 1-3
  • Q:

    how much lift does each spacer give the spring and how many spacers are needed per spring
    Asked on 9/30/2015 by 450slc from capitol heights MD

    1 answer



      Hi 450slc, happy to help you! The AutoCraft Twist-In Rear Coil Spring Boosters (4-Pack) (Part No. AC189001/18-900) will lift up to 1-1/2 inches and you will need 2 spacers per spring.

      Answered on 10/1/2015 by Steve from AAP
  • Q:

    how do you install the twistin real coil spring boosters so they dont fall off. Does car needed to be on LIFT etc
    Asked on 4/7/2014 by bob from hollywood, florida

    1 answer



      Hi Shopper, good question! To install the twistin real coil spring boosters jack up the car, remove the wheels and screw them into the widest gap of the coil spring wire with a deep-well socket and a breaker bar. For help with your project, I would recommend purchasing a Chilton or Haynes Repair Manual for your vehicle, not only will it explain how to replace this part, but you'll find it handy for many more projects on your vehicle.

      Answered on 4/10/2014 by Steve from AAP
  • Q:

    is this part meant to be installed into old coil springs to lift rear of car
    Asked on 5/18/2012 by michael from pinellas park .fl.

    1 answer



      This Superior 18-9001 Twist In Rear Coil Spacer - part# 18-9001 helps restore spring tension. Helps restore life to sagging coil springs. Provides lift to sagging springs. Increases spring tension to help prevent bottoming.

      Answered on 5/19/2012 by Vincent from AAP
Displaying questions 1-3

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