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LAKEWOOD INDUSTRIES

the housing brackets on each side. Using a hand 
drill with a 1/2” chuck, drill 1/2” holes through the 
rear mounting plates then through the factory lower 
control arm housing brackets. Spot drill using a 
1/4” drill, then change to a 1/4” drill size. Drill through
with the 1/4” drill bit then drill through with a 3/8” drill 
bit and last with a 1/2” drill bit. CAUTION: Be very 
careful when drilling through that the drill bit does not 
grab and whip the drill around out of your hands. 

9. Insert short 1/2” bolts, lock washers and nuts then 

tighten securely. 

10. Grease the four fittings in the bars through the 

holes in bottom of bars.

11. If the anti-roll bar is going to be used, it can be 

attached to the holes provided in the lift bars. 
Place the spacers between the anti-roll bar and lift

bars (if necessary) on each side and use factory 
GM bolts and nuts. tighten securely. NOTE: for 
drag racing use, we recommend not using the 
anti-roll bar. 

12. Place car back on the ground and you are ready 

to test.

CAUTION: TO USE YOUR LIFT BARS ARMS TO
ADJUST YOUR REAR END PINION ANGLE,
FOLLOW DIRECTIONS BELOW.

1. Remove car from jack stands. now place car upon 

blocks or car ramps so that the car weight is on all 
(4) wheels, keeping the car level, but making sure 
you still have room to work under the car to make 
your adjustments.

2. With the car up in the air you will need to check the

pinion angle of the rear end and drive shaft. Read 
the attached sheet on setting pinion angle. You will 
need to aquire a magnetic protractor (angle finder) 
to do this operation.

3. Read this before performing the next operation ! !

Using a magnetic protractor (angle finder) check the
pinion angle. If you can’t obtain the desired 4-6 
degree pinion angle, then loosen the 4 lower bolts 
and pry between the shock stud and control arm to
adjust angle. Tighten all bolts securely while 
checking pinion angle.

4. Do not attempt to drive the car with out securing 

the lift bar plate to the axle housing plate welded or
bolted. Center punch and drill starting with 3/16” as
a pilot hole then step up the sizes using 1/4”, 5/16”,
3/8” and finishing with 1/2” for final size. Then 
install the 1/2” bolts, lockwashers and nuts and 
tighten. (torque to 65 ft lbs.)

5. Remove car from the support stands or car ramps 

and place it on the ground. You are now ready to 
Rock & Roll!!

PLEASE NOTE

1. Be sure to check the bolts frequently. make sure 

they are tight and always stay tight.  you can use 
thread lock if you wish.

2. Welding is recommendedf (but not required) to 

secure the lower plates to the lower axle brackets. 

3. These lift bars are legal for use in NHRA stock 

eliminator classes as a bolt on application only!  
(no welding is allowed).

GM A-BODY

Sway bar holes.

GM G-BODY

2 bolts here if not welding.

Sway bar.

GM G-BODY

2 bolts here if not welding

Sway Bar

Sway Bar spacer bushings

Summary of Contents for 21312

Page 1: ...ting into the hole then one at a time drive them in 2 Grease the ends of the front bar bushings and align the nylon washers over the steel inner bushing The grease will hold the washers in place temporarily Also grease the inside of the front frame lift bar mounting brackets 3 Place each lift bar into front frame brackets align bolt holes and insert the correct bolt supplied from the inside of the...

Page 2: ...r adjustments 2 With the car up in the air you will need to check the pinion angle of the rear end and drive shaft Read the attached sheet on setting pinion angle You will need to aquire a magnetic protractor angle finder to do this operation 3 Read this before performing the next operation Using a magnetic protractor angle finder check the pinion angle If you can t obtain the desired 4 6 degree p...

Page 3: ... driveshaft 3 degrees 6 degrees total pinion 4 degrees driveshaft 2 degrees 6 degrees total pinion 6 degrees driveshaft 0 degrees 6 degrees total OTHER SUSPENSION TIPS THE FOLLOWING ARE FINE TUNING TIPS FOR YOUR SUSPENSION You can purchase shocks that are 3 position adjustable for both front and rear applications These shocks are available from your local speed shop or other suppliers If you can t...

Page 4: ...engine the pinion gear turns the ring gear causing the axle housing to rotate pulling back on the upper control arms and pushing forward on the lower control arms These forces theoretically meet at the instant center point as shown on the illustration The shorter the instant center point is the more the tires will separate from the body upon launch IMPORTANT Periodically check to make sure that al...

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