How to install SPC Rear Lower Control Arms on a Subaru BRZ

Written By: Dung Nguyen (and 3 other contributors)
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Difficulty

Easy

Steps

7

Time Required

00:30:00 - 00:45:00

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User-Contributed Guide

User-Contributed Guide

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Introduction

Since we compete in AutoX with our BRZ, we wanted more camber adjustment option in the rear wheels for our car. These SPC rear lower control arms, give us just that. These arms give us the camber we need or less camber that we need. This part is definitely a must after lowering the car.

  1. The BRZ Platform has camber adjustability done through the rear lower control arm. With the SPC rear lower control arms, more camber can be obtained.

    • The BRZ Platform has camber adjustability done through the rear lower control arm. With the SPC rear lower control arms, more camber can be obtained.

    • Begin by removing the wheels and tires on both sides of the car after it has been lifted into the air.

    Edit

  2. Using a 17mm wrench, loosen the 3 bolts on the lower control arm. (Outer lower control arm bolt, lower suspension bolt, and lower inner control arm bolt). Using a 17mm wrench, loosen the 3 bolts on the lower control arm. (Outer lower control arm bolt, lower suspension bolt, and lower inner control arm bolt). Using a 17mm wrench, loosen the 3 bolts on the lower control arm. (Outer lower control arm bolt, lower suspension bolt, and lower inner control arm bolt).

    • Using a 17mm wrench, loosen the 3 bolts on the lower control arm. (Outer lower control arm bolt, lower suspension bolt, and lower inner control arm bolt).

    Edit

  3. With a 14mm wrench, remove the sway bar end link to lower control arm bolt. Once sway bar links are disconnected, remove the remaining bolts. You should now be able to remove the arm.

    • With a 14mm wrench, remove the sway bar end link to lower control arm bolt.

    • Once sway bar links are disconnected, remove the remaining bolts.

    • You should now be able to remove the arm.

    Edit

  4. When installing the new control arm, begin with the innermost bolt.

    • When installing the new control arm, begin with the innermost bolt.

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  5. Lay the eccentric disk against the outermost hole of the lower control arm. Insert bolt through the arm in the direction of the rear. Follow by installing the reaming eccentric disk. Secure but do not fully tighten the eccentric nut.

    • Lay the eccentric disk against the outermost hole of the lower control arm.

    • Insert bolt through the arm in the direction of the rear.

    • Follow by installing the reaming eccentric disk. Secure but do not fully tighten the eccentric nut.

    Edit

  6. Reinsert the remaining hardware, securing end link and the lower suspension. Proceed with tightening remaining bolts.

    • Reinsert the remaining hardware, securing end link and the lower suspension.

    • Proceed with tightening remaining bolts.

    Edit

  7. Repeat process for opposite side. The SPC includes an eccentric bushing for your toe arm to give you more adjustability out of your factory toe rod.

    • Repeat process for opposite side.

    • The SPC includes an eccentric bushing for your toe arm to give you more adjustability out of your factory toe rod.

    • For this write-up, we will not be installing it, as we will be installing an adjustable arm in the future.

    • Although the arm is slightly heavier than the stock arm, it is definitely more rigid and the extra camber adjustments makes up for a small weight addition.

    Edit
Conclusion

The install of the rear lower control arms will definitely change the rear alignment. It is now time to get an alignment and get that rear end straightened out.

One other person completed this guide.

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Dung Nguyen

Member since: 03/27/2013

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