D-MAX D1SPEC Front Lower Arm & Tension Rod Set (Toyota 86/GR86/BRZ)

At its shortest, this adjustable front lower arm is already 15mm longer than OEM, and it can be extended another 40mm — up to 55mm longer than OEM in total. The biggest difference from other brands' extended lower arms is the curved section where the arm would normally hit the tie rod end, giving clearance all the way to the lower center. Two tension rod mounting positions let you move the rod out of the way as steering angle increases, preventing interference before it happens. Because the arm is adjustable, the sway bar may also need adjusting, so five mounting holes are provided; the dedicated Multi Sway Bar Link also fits. The curved section — the area people worry about most — has a reinforcement plate inserted, giving strength far beyond the OEM lower arm. To suit the many knuckles now on the market, the stopper uses an adjustable bolt so it can be set freely, and the bolt and nut can be inserted from either side. A setup that avoids arm lock is of course required with our lower arms, and we recommend our Offset Rack Adapter. Combined with our racing knuckles, steering angle exceeds 70 degrees (some variation depending on other suspension settings).

Co-developed with Kawabata, who drives an 86 as his personal car, does demo runs for TOYO Tires and competes in the D1 GRAND PRIX series in a GR86.

Product specifications

Pillow ball outer diameter	51Ф
Pillow ball inner diameter	22Ф
Adjustment method	Turnbuckle type
Adjustment thread pitch	1.5mm
Adjustment range	55mm
Stopper adjustment	Threaded, adjustable

*Compared with OEM lower arms (minimum +40mm longer than OEM)

Compatible chassis codes

86/GR86	ZN6/ZN8
BRZ	ZC6 / ZD8 *Does not fit ZD8 with aluminum knuckles

*Does not fit BRZ (ZD8) with aluminum knuckles, unless you purchase castle nuts 90171-12002 (2 total, left and right)