Edelbrock 5772 Manuel D’Utilisation

Brochure #63-5772

Rev. 3/07 - DA/mc

Page 1 of 2

©2007 Edelbrock Corporation
Catalog #5772

Please study these instructions carefully before installing your new Cat-back Exhaust System. If you have any questions,
contact our Technical Hotline at: 1-800-416-8628 , 7am - 5pm, Monday-Friday, Pacific Standard Time or e-mail us at
Edelbrock@Edelbrock.com.

❑ 3/8" ratchet set and metric sockets

❑ Jack and jackstand

❑ 15mm wrench

❑ Liquid penetrant and rubber lubricant

1. Raise vehicle and support with proper jackstands for

the weight, leaving the suspension hanging.

2. Use caution around hot exhaust systems to avoid

burns.

3. Use penetrating oil on all nuts and bolts.

4. Remove all nuts, bolts, and hanger lances from the rear

of the catalytic converter to the tailpipes and save
them.

5. Remove the old system. In some cases, you will find it

easier to cut the overaxle pipe to remove it.

1. Install the intermediate pipe over the catalytic outlet

pipe, using the 2-3/4” clamp, snug the pipe just
enough to allow for adjustment. Position clamp for
best ground clearance.

2. Install the overaxle pipe in over the axle from the rear.

As you rotate it into position, slip the hanger bracket on
the tube onto the stock frame mounted rubber hanger.
Line the intermediate pipe rear outlet up with the front
of the overaxle pipe and slip them together. Install one
of the 3”band clamps on the connection and just snug
it so that you can adjust.

3. Install muffler onto outlet of overaxle pipe along with a

3” band clamp.

4. Install elbow #25-3224 on the left side outlet of the

muffler and elbow #25-3225 on the right side outlet
using 2-1/2” band clamps.

5. Install left hanger clamp #23-4068 onto O.E. rubber

isolator using supplied bolt, nut, and washers. Larger
fender washer goes against isolator. Snug clamp.

6. Install tailpipes onto elbows, snug the hanger clamp on

the left side. Install a 3” band clamp on the right side
elbow and snug the clamp.

7. Now begin at the front of the vehicle, align the system,

paying particular attention to the overaxle area. When
you have the overaxle pipe centered between the inner
panel and the gas tank shield, tighten up the band
clamp behind converter and 3” band clamp on the
overaxle connection. Make sure that you rotate the
band clamp to clear suspension-to-chassis movement.

8. Rotate the muffler up at the rear (about 10 degrees),

align the tailpipes and tighten everything up as you
align.
NOTE: Due to large production tolerances on GM F-
Body cars, it may be necessary to trim overaxle pipe at
the muffler inlet. CAUTION: There needs to be a
minimum of 2” slipped into muffler for proper
clamping. Tailpipe centering can be affected by how
muffler is positioned on vehicle; muffler should be
parallel to the rear axle. Trimming of the elbows at the
muffler can also be used to adjust tailpipe centering.

9. Check for leaks and correct as needed.