AWD, Drivetrain, Impreza, STi, Subaru, Suspension, USDM, WRX

Subframe Lockbolt install for Subaru WRX/STi

Subframe Lockbolt install:

6.) Chase the hole with a tap or a thread chasing tool. Make sure to spray WD-40 to lubricate the tool while using it in the threaded holes. If you live in any area that has winters a large of amount of dirty can collect in the threads.

Subframe Lockbolt install for Subaru WRX/STi: Chase the threads with a thread chaser and don't forget to lubricate while doing so.
Subframe Lockbolt install for Subaru WRX/STi: Chase the threads with a thread chaser and don’t forget to lubricate while doing so.

7.) Clean out the threads with the bottle brush and test fit the subframe lockbolt fitment. If the subframe lockbolt doesn’t easily thread you’ll have to re-chase with a thread chaser.

Subframe Lockbolt install for Subaru WRX/STi: Test fit the subframe lockbolts.
Subframe Lockbolt install for Subaru WRX/STi: Test fit the subframe lockbolts.

8.) Use anti-seize on the lockbolt threads and then apply some grease to the plastic adapter portion of the lockbolt.

Subframe Lockbolt install for Subaru WRX/STi: Put anti seize like this on the lockoutbolts.
Subframe Lockbolt install for Subaru WRX/STi: Put anti seize like this on the lockout bolts.

9.) The subframe might need to be shifted around to align the threaded holes with the lockbolt. Often a pry-bar can be useful to move the subframe around.

10.) Once the lockbolt gets started it will for the most part find it’s own way as you tighten it down. Use a 10mm allen socket to do this.

Subframe Lockbolt install for Subaru WRX/STi: Put anti seize like this on the lockoutbolts. This is what it should look like when using KartBoy bolts.
Subframe Lockbolt install for Subaru WRX/STi: Put anti seize like this on the lockdown bolts. This is what it should look like when using Kartboy bolts.

11.) Install the lockbolt for the other same with the same steps as above.

12.) Make sure the bolts are only snug tight.

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