Gibson 615555L User manual

INSTRUCTION MANUAL
STAINLESS SINGLE EXHAUST
CHEVY TRUCK 7.4L 2/4WD
STANDARD CAB, LONG BED
PART # 615555L
E
D
H A G B G C F
ITEM PART # QUANTITY DESCRIPTION
A 138-30039S 1 3" X 39" STAINLESS HEADPIPE
B 420887 1 SUPERFLOW STAINLESS MUFFLER
C 110-50030RS 1 3" OVERAXLE STAINLESS TAILPIPE
D 117-50032RS 1 3" TURNOUT STAINLESS TAILPIPE
E 500360 1 3-1/2" STAINLESS STEEL TIP
F 500033 1 TAILPIPE HANGER
G 500551 2 MUFFLER HANGER
H OHD300 1 3" CLAMP
Thank you for purchasing our GIBSON EXHAUST SYSTEM for your
vehicle. If you need further assistance, please do not hesitate
to call our Technical Department at [phone], Monday
through Friday, 8:00 AM to 5:00 PM.

EXHAUST INSTALLATION PART #615555L
WHEN INSTALLING THIS SYSTEM, MAKE SURE TO USE PROPER SAFTEY
PRECAUTONS. USE JACK STANDS WHEN UNDER TRUCK, SET PARKING
BRAKE, BLOCK TIRES, AND SAFTEY GLASSES AND GLOVES. DO NOT WORK
WITH HOT PIPES!
SUGGESTED TOOLS:
15mm SOCKET, 9/16” SOCKET, ½” WRENCH, ½” SOCKET,
JACK STAND,HACKSAW
1. Lay out the GIBSON EXHAUST SYSTEM on the floor so it looks
like the drawing.(Note: Drawing is not exact but for placement of
parts only.)
2. Raise vehicle and support with stands. Remove stock hangers
leaving rubber grommets in place. Cut the stock tailpipe for easy
removal.
3. Connect headpipe # A behind the stock converter. Use
jackstands to support converter, so it won’t drop. Then attach
clamp # H.
4. Connect muffler # B with inlet towards the converter to the
headpipe. Use a jack stand to support the muffler and connect
with hanger # G. Muffler is looking into the louvers.
5. Install the overaxle tailpipe # C , connect to the muffler and
attach hanger # G.
6. Connect turnout exit pipe # C to the rear of overaxle pipe. Roll
turnout pipe until you have it at the correct angle for your truck
and attach hanger # F.
7. Install stainless steel tip. To clean stainless tip use a scott brite
pad and any stainless steel or aluminum cleaner
8. When you have everything in place, firmly tighten all bolts and
clamp down securely.
MAKE SURE YOU HAVE A 1” CLEARANCE ON ALL PIPES FROM
ALL BRAKE LINES, FUEL LINES, SHOCKS BOOTS, TIRE, ETC.