BMR Suspension TCA021 - Manual

S197 TUBULAR ADJUSTABLE CONTROL ARMS
Part # TCA020, TCA021
NOTE: Although this installation can be performed with a hydraulic jack and stands, a 4 post service lift is
recommended.
1. Lift vehicle and support by the axle. Remove both rear wheels.
2. Using a small screwdriver, unhook the brake cable were it attaches on the caliper. Slide the brake cable out of the control
arm.
3. Remove both control arm bolts using an 18mm wrench or socket. Remove the control arm. Do not remove both lower
control arms at one time or the axle may rotate creating additional difficulty during re-installation.
4. Adjust the BMR control arm until it is the same length as the factory arm. With the narrow end forward, install the control
arm using the factory bolts. The offset bushing at the rear of the control arm faces inward. If using part number TCA021, it is
recommended to lift the rear-end until the car is supported before tightening the mounting bolts. This prevents the
polyurethane bushings from being pre-loaded. Failure to do so may result in premature bushing wear and/or irregular ride
height. Tighten all mounting bolts to 130 ft/lbs. While the suspension is loaded, lube the grease fittings. Do not exceed 3-4
pumps per fitting.
5. Repeat steps 2-5 on the other side.
6. Re-install the brake cables. This may be done by using a pry-bar to rotate the brake lever while re-inserting the cable end
into the slot. Zip tie the brake cable to the new control arms.
7. If you do not want to set a custom pinion angle, tighten all jam-nuts, re-install the wheels, and lower vehicle. If adjustment
is required, use the procedure below:
ADJUSTING PINION ANGLE
1. Make sure the rear end is loaded by either setting the
car on the ground or letting the car rest on jack stands
positioned under the rear axle. In both cases, the car
needs to be as level as possible and the suspension
loaded.
2. Place an angle finder on the rear portion of the two
piece driveshaft and record the angle. Now place the
angle finder on the pinion yoke and record the angle.
3. Subtracting one angle from the other results in your
pinion angle (Example: -2 rear end angle subtracted
from 0 driveshaft angle = -2 degrees)
Adjust the
control arm to achieve the desired angle.
4. As a starting point, most cars seem to like the
following initial settings: Automatics: 1-2 degrees
negative, Manuals: 2-3 degrees negative
5. Once pinion angle has been set, tighten all jam nuts.
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This product is an aftermarket accessory and not designed by the vehicles manufacturer for use on this vehicle. As
such, buyer assumes all risk of any damage caused to the vehicle/person during installation or use of this product.