Chassis Components Bushings and Mounts

JBR

Transmission Mount 70/80/88 Durometer

$199.99

SKU: MS3-TMM-1 (80 Durometer)

In Stock
In Stock
Ships by Aug 3
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30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

The JBR transmission mount is engineered to replace the stock cast aluminum OEM transmission perch on the 2010-2013 Mazdaspeed 3, offering a unique vertically oriented design. This mount is available in three durometer options: 70 (Street - RED), 80 (Street/Track - BLK), and 88 (Track/Strip - BLK), allowing you to choose the level of stiffness for your driving needs. Constructed from robust materials, the JBR mount features a 1/4″ plate steel base with a 2″ solid steel stand-off. The core of the mount utilizes CNC-formed steel and 4130 sleeves to house the proprietary polyurethane bushings. Precision TIG welding ensures maximum strength and durability, while a corrosion-resistant powder coating protects the finish. The 70 and 80 durometer mounts incorporate a large, nearly 3″ diameter bushing, which, combined with JBR's polyurethane formula, delivers excellent performance and durability without excessive harshness. For maximum performance and reduced deflection, the 88 durometer version employs a smaller 1.5″ diameter bushing. This harder bushing significantly minimizes movement, leading to improved handling and responsiveness. When paired with JBR's other motor mounts, this transmission mount aims to eliminate common issues like wheel hop and torque steer that have plagued the Mazdaspeed 3. Installation is designed as a direct bolt-on process, and the mount includes all necessary hardware and instructions. The product also comes with free shipping within the US and a hassle-free lifetime warranty.

MIA's Description

The JBR transmission mount is a replacement for the OEM transmission perch, designed for the 2010-2013 Mazdaspeed 3. It features a vertically oriented design and is available in 70, 80, or 88 durometers.

The mount is constructed from 1/4″ plate steel with a 2″ solid steel stand-off and CNC-formed steel with 4130 sleeves. All components are precision TIG welded and powder-coated for corrosion resistance. The 70 and 80 durometer options use a nearly 3″ diameter bushing, while the 88 durometer uses a 1.5″ diameter bushing for reduced deflection.

Fitment

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Specifications

BrandJBR
Part NumberMS3-TMM-1 (80 Durometer)
CategoryChassis Components

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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