INSTALLATION INSTRUCTIONS
40-3032
01-06 GM Silverado 1500 HD 6.0 V-8
Crew Cab / Short Bed
TOOLS RECOMMENDED:
TO START :
9/16" deep socket
3/8" ratchet
7/8" open end wrench
15mm box wrench
rubber mallet
spray lubricant or penetrating oil
anti-seize
reciprocating saw or hack saw
pair of channel lock pliers, 10"
2. Disconnect negative battery cable and
allow vehicle exhaust to cool.
1. Remove and inventory new JBA
exhaust.
NOTES:
1) It may be necessary to loosen and
realign the sp are tire for proper
clearance.
2) All exhaust systems will exp and
about 1" rearward when exhaust
temperature st art to rise.
3) Use Anti-seize on threads of
clamps.
Part s List
A. Muffler, offset 2
B. Tail pipe hanger 1
C. Turn out 1
D. Turn out with hanger 1
E. Tail pipe 1
F
G
H 3" clamp with hanger
1
I Extension bushings 2
J 5/16" nut, bolt and lock washer 1
3" clamp
Support bracket
6
1
**Installation recommendation:
Installation of this system requires welding. JBA recommends the vehicle be taken to a reputable exhaust shop.
17040a
12.11.06
A
B
C
D
E
A
F
F
F
F
G
3. With the vehicle raised, use a
reciprocating saw and cut the exhaust just
ahead of the factory muffler as close to the
welded connection as possible.
4. Cut the tail pipe ahead of the hanger
closest to the muffler. Then remove the
factory muffler.
5. Spay lubricant on the rubber exhaust
grommets behind the muffler.
6. Using the channel lock pliers remove the
exhaust hangers from the rubber
grommets.
7. From the rear of the vehicle, remove the
tail pipe assembly from the truck.
8. Pass the new JBA tail pipe (B) over the
axle and insert the hanger into the forward
rubber grommet.
9. Take the turn out with hanger (D) and
insert the hanger into the rear rubber
grommet.
10. Insert turn out (C) and attach to turn out
(D) using the supplied nut and bolt. Snug
(C) and (D) together but don't fully tighten
yet.
11. Pass tail pipe (E) over the axle and insert
it into turn out with hanger (E). Insert tail
pipe (B) in to turn out (C)
12. Install the new mufflers (A) with the
offset end toward the front of the vehicle.
See the picture above. If installing on the a
1500 HD you will need to insert the reducer
bushing into the offset end of the new
mufflers.
13. Assemble the new rear exhaust support
bracket (G) with the supplied 3" clamps (F)
as shown.
14. Position the assembled bracket at the
rear of the mufflers over the slip connection
with the tail pipes (B) and (E). Then align the
mufflers.
15. Tack weld the mufflers in place at the
slip connections with the factory exhaust.
16. Align the turn outs (C) and (D) and tail
pipes (E) and (B) for proper fit and
clearance.
17. Align the tips on the turn outs (C) and
(D) for proper clearance.
18. Snug the support bracket (G) holding the
tail pipes (E) and (B) to the mufflers (A).
19. With the new exhaust system properly
aligned weld the muffler into place.
20. Finally tighten the support bracket.
H
I
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(1 pages)
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