BMR Suspension TAS003 User Manual

TAS003 TORQUE ARM CONVERSION INSTALLATION INSTRUCTIONS

1967-1969 Camaro and Firebird

Please take note before proceeding with this installation:

• This product may interfere with certain exhaust kits. Exhaust crossovers are not

compatible with this torque arm suspension. In some circumstances, it may be necessary
to fabricate a custom exhaust to insure adequate clearance.

• While not necessary, a heavy duty cast aluminum differential cover is recommended with

this kit. Cast covers are more structural in nature than the stamped steel OE unit and
will distribute the load across the differential, further strengthening the assembly.

• A service lift, while not necessary, is recommended for this installation.

TOOLS REQUIRED:
3/8” and ½” drive ratchets 9/16”, ¾” wrenches

3/8”, 9/16”, ¾” and 1-1/8” sockets Rubber mallet
Pry-bar Drill
3/8” Allen wrench Step bit or ½” and ¾” drill bits
Jack stands Hydraulic Jack
Grease gun with synthetic lube Torque wrench
Welder (optional) Plumb bob and tape measure

INSTALLATION:

This installation is the second part of the torque arm conversion process. It is assumed at this
point that the installer has already installed the BMR Torque Arm and Torque Arm cross­member using the appropriate instruction sheets. If you do not have these instruction sheets,
please contact BMR or download them from the BMR website before proceeding with the
following installation instructions.

1. Lift vehicle and support with stands under

the frame, allowing the rear end to hang.

2. Remove the rear wheels/tires.

3. If the vehicle has exhaust installed, remove

it at this time.

4. Remove the rear shocks. Using the OE

shock bolts, bolt the supplied BMR shock
plates over the factory shock holes.

5. In order to remove the rear leaf spring bolts,

it is necessary to remove the fuel tank.
Drain the tank using a drill pump or siphon.

6. Support the tank and then remove the two

mounting nuts using a 9/16” deep socket.
Pull the tank support straps down, allowing the tank to be lowered. (Image 1)

7. Lower the tank far enough to access the fuel lines and electrical connectors. Disconnect

and cap the fuel lines. Lower and remove the fuel tank.

8. Support the rear end with jack stands.

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(CONTINUED)

9. Using a 3/4” socket, remove the leaf spring U-bolts on the rear end. (Image 2)

NOTE: the image shown has aftermarket traction bars installed. Leaf spring mounts

may appear slightly different in nature.

10. Using a 5/8” socket, loosen and remove the rear leaf spring shackle bolts. Loosen the

upper shackle bolt at the frame and remove the shackles. (Image 3)

11. Using a 9/16” socket, remove the (3) bolts on the front spring mount of each leaf spring.

(Image 4) NOTE: the image shown had aftermarket traction bars installed. Front leaf
spring eye may appear slightly different in nature.

12. Once all bolts are removed, remove the leaf springs, leaving the rear end in its original

position.

13. Once the leaf springs have been removed, loosen the bolts and remove the front spring

pockets. (Image 5)

14. Install the BMR trailing arms into the leaf spring pockets as shown using the provided ½”

x 5” bolts. Thread a stainless washer under the nut then tighten to 80 ft/lbs. (Image 6)

15. Re-install the spring pockets into the body as shown in Image 7. Tighten the 3 spring

pocket bolts to 30 ft/lbs.

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(CONTINUED)

16. Install the BMR control arm mounts onto the axle using the supplied U-bolts. The open

portion of the mount should face forward as shown in Image 8. Tighten nuts to 90 ft/lbs.

17. Lift and insert the other end of the control arm into the axle brackets on the highest

mounting hole and insert the supplied ½” x

3.25” bolts. This connection should be left
loose until a later step. NOTE: it may be

necessary to adjust the length of the control
arms to match the holes in the control arm
mounts. It may also be necessary to move
the rear end forward or back to line the
mounting holes up. If one trailing arm is
adjusted, duplicate this procedure on the
other arm and verify that they are equal in
length before proceeding to the next step.

18. The next step involves installation of the

shock cross-member. This step can be
performed by one person but is much
simpler with a helper. Have a helper hold
the shock cross-member up into place as
shown in Image 9.

19. Use the fuel tank strap mounting positions

as a reference point to locate the cross­member properly forward to back and to
insure that the cross-member is mounted
square in the body. As shown in Image 10,
measure the distance from the relief in the
trunk pan to the main cross tube of the
cross-member. Vehicle production variance
prevents a “one measurement fits all” figure

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