1964-1972 (All GM A-Bodies) & 1978-1987 (All GM G-Bodies)
INSTALLATION INSTRUCTIONS
LAKEWOOD INDUSTRIES
LAKEWOOD
“TRACTION...ACTION” LIFT BARS
Part Number
#21312 / 21313
WORK SAFELY!
For maximum safety, perform this installation on a
clean, level surface and with the engine turned off.
Place blocks or wedges in front of, and behind both
rear wheels to prevent movement in either direction.
CAUTION: To avoid any possibility of bodily injury or
damage to vehicle, do not attempt installation until
you are confident that the vehicle is safely secured
and will not move.
PREPARATION TIPS FOR INSTALLATION
1. Place vehicle on a solid level surface to ensure safe
installation.
2. Place wheel blocks in front of and behind both front
wheels to prevent movement in either direction.
3. Raise rear of vehicle and support axle housing using
approved automotive support stands having adequate
load capacity (6” inside from each control arm).
4. With a paint scraper, scrape all the undercoating
and rust off the inside of the frame and rear end lift
bar mounting areas.
GM LIFT BAR INSTALLATION
1. On a work bench, drive the grease fittings into the
1/4” holes in the front and rear of bars as follows:
Use a 1/4” deep well socket and a small hammer.
Place a small amount of bearing grease on the ball
end of each grease fitting so that the fitting will
temporarily stick to the end of the 1/4” socket.
Place the fitting 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 frame. Place self locking nut into
socket with extension then attach through the
outer frame holes.
4. Attach rear lift bar mounting plates as shown. use
the hardware supplied at the stock GM
lower control arm bolt holes. Place proper bolts
through these bolt holes and secure lock washers
and hex nuts. If preferred, thread locking liquid can
be used. Do not tighten fasteners yet.
5. Grease the ends of the rear bar bushings and place
nylon washers over the steel bushings just like in
step 2. Swing lift bars up between rear mounting
plates. Align the bolt holes and insert proper bolts
supplied. Attach lock washers and hex nuts and
tighten all bolts and nuts.
6. The pinion angle must now be checked and
adjusted if necessary. The angle between the drive
shaft and the rear end yoke must be between 4 and
6 degrees down. See pinion angle explanation sheet.
(SEE NUMBERS 1, 2, 3, 4 ON THE NEXT PAGE.)
7. With pinion angle set, tighten all fasteners securely.
8. A hole must be drilled through one of the rear lift
bar brackets (if not already drilled in)and through
(SEE NUMBER 4 ON THE NEXT PAGE.)
GM A-BODY
Small bushing used on the 21312 only
GM A-BODY. 64-72
GM A-BODY
Bolt here if not welding.
