Damond Motorsports GR Corolla Rear Motor Mount Install Guide
Looking to plant power to the ground, reduce drivetrain slop, drastically lessen wheel hop, all while adding minimal NVH? Look no further, Damond Motorsports has the answer in the DM Rear Motor Mount for the GR Corolla.
Here is our install guide.
WARNING:
By installing this Product, you understand that:
The buyer/user assumes all risk as to quality, performance and use of these products and agrees to hold DD2, Inc. DBA Damond Motorsports (“DM”) and its representatives not responsible for any injury, loss, or damage; including any and all incidental or consequential damages arising from the sale, installation, or use of our products.
Many parts are intended for “OFF ROAD ” and “RACING” applications only. It is suggested that State and Federal emission regulation be checked, to see whether or not this product complies with those laws. Read through the instruction guide thoroughly, before attempting this install. Do not install any components while the engine is running or shortly after the car has been running. Give the car some time to cool down. Failure to install this product correctly, or failure to remove/reinstall existing components correctly, could result in poor running conditions, or even component and engine failure, which the sole user of this product is responsible for. The install instructions are intended to guide you on how to install this product properly. Only an experienced mechanic should perform this install. In addition, DM, and its representatives reserve the right to modify and or discontinue parts without notice. If you the user/buyer of this product do not agree with the above, contact DM immediately, to discuss a possible return of our product for a full refund minus shipping costs, and other fees.
Tools Needed:
- Safe means of lifting and supporting the vehicle: jack and jack stands, wheel ramps, or lift.
- Torque Wrench
- Breaker bar or impact gun
- 10mm socket
- 14mm socket
- 22mm socket
- 24mm socket, or 24mm wrench, or adjustable wrench
- Trim clip removal tool, or flat head screwdriver
Begin by removing the undertray, if equipped. Location of bolts and clips needed to be removed are indicated with the green dots
Next locate the factory rear mount connecting the subframe/k member to the transmission. Loosen the 22mm bolt connecting the rear mount to the transmission bracket.
Loosen and remove the 22mm bolt on the chassis side, and set aside.
Loosen and remove the 4 x 14mm bolts securing the transmission bracket to the transmission. Set the bolts aside.
Remove the mounts from the vehicle.
Install the Damond chassis side mount onto the chassis and loosely install the 22mm bolt removed earlier.
Install either the OEM transmission side mount or the Damond transmission side mount to rear chassis mount and loosely install the provided 22mm head bolt, washers, and 24mm locknut. Make sure the washers are on the outsides of the bushings on the chassis mount.
Align the transmission side piece with the holes in the transmission, and loosely tighten the 4 x 14mm bolts removed earlier.
First tighten the provided 22mm bolt, while holding the 24mm nut. Tighten to 125lbs/ft or 170Nm
Next tighten the 4 x 14mm bolts to 35lbs/ft or 45Nm
Lastly tighten the 22mm factory chassis bolt to 150lbs/ft or 200Nm
With OEM trans side mount:
With the Damond trans side mount:
The Damond Motorsports Rear Motor Mount is now installed!
Lower the vehicle, and go for a quick test drive to ensure there's no knocking from bolts not being fully tightened. Note: there will be added NVH immediately upon installing the mount. Generally after 500-1500 miles some of the NVH will subside to a bit lower than immediately after installing the mount. At 100-250 miles we strongly recommend checking the torque of all the fasteners accessible without fully removing the mount.
Congratulations! You've successfully installed the Damond Motorsports Rear Motor Mount. Enjoy all the benefits the mount has to offer on your GR Corolla!