JBA 40-3005 User Manual

INSTALLATION INSTRUCTIONSINSTALLATION INSTRUCTIONSINSTALLATION INSTRUCTIONSINSTALLATION INSTRUCTIONS

**Installation recommendation: JBA recommends in most cases that the vehicle be taken to a reputable exhaust shop.

40-3005

GM Silverado / Sierra 99-01 4.3/4.8/5.3L Regular cab / short bed 2/4 wd

TTTTOOLS RECOMMENDED:

ratchet 9/16" deep socket 15mm deep socket pair of channel lock pliers reciprocating saw or hack saw rubber mallet spray lubricant or penetrating oil anti-seize prybar

Part s List

A. Head pipe 1 B. Muffler 24" 1 C. Tail pipe with hanger 1 D. Turn out 1 E. Front muffler clamp 3" 1 F... Rear muffler clamp 3" 1

G.... Turn out clamp 3" 1

TTTT OOOO STSTSTST ARTARTARTART ::::

1. Remove and inventory new Evol™1. Remove and inventory new Evol™1. Remove and inventory new Evol™1. Remove and inventory new Evol™ exhaust.exhaust.exhaust.exhaust.

2. Disconnect negative battery cable and2. Disconnect negative battery cable and2. Disconnect negative battery cable and2. Disconnect negative battery cable and allow vehicle exhaust to cool.allow vehicle exhaust to cool.allow vehicle exhaust to cool.allow vehicle exhaust to cool.

3. With vehicle raised and properly sup-3. With vehicle raised and properly sup-3. With vehicle raised and properly sup-3. With vehicle raised and properly supported, using a reciprocating saw or hackported, using a reciprocating saw or hackported, using a reciprocating saw or hackported, using a reciprocating saw or hack sawsawsawsaw, cut the t, cut the t, cut the t, cut the tail pipe approximately 1"ail pipe approximately 1"ail pipe approximately 1"ail pipe approximately 1"

behind rear mufbehind rear mufbehind rear mufbehind rear muffler hangerfler hangerfler hangerfler hanger....

8. S8. S8. S8. Spray lubricant on front mufpray lubricant on front mufpray lubricant on front mufpray lubricant on front muffler hangerfler hangerfler hangerfler hanger grommet.grommet.grommet.grommet.

9. With muf9. With muf9. With muf9. With muffler and head pipe properlyfler and head pipe properlyfler and head pipe properlyfler and head pipe properly supported, using a psupported, using a psupported, using a psupported, using a pair of channel lockair of channel lockair of channel lockair of channel lock pliers, remove hanger rod from bottompliers, remove hanger rod from bottompliers, remove hanger rod from bottompliers, remove hanger rod from bottom hole of grommet.hole of grommet.hole of grommet.hole of grommet.

15. With the JBA logo to the rear of the15. With the JBA logo to the rear of the15. With the JBA logo to the rear of the15. With the JBA logo to the rear of the vehicle, slip mufvehicle, slip mufvehicle, slip mufvehicle, slip muffler (B) on head pipe (A).fler (B) on head pipe (A).fler (B) on head pipe (A).fler (B) on head pipe (A). NOTE:NOTE:NOTE:NOTE: YYYYou may have to tou may have to tou may have to tou may have to tap it with aap it with aap it with aap it with a rubber mallet.rubber mallet.rubber mallet.rubber mallet.

16. Slip rear muf16. Slip rear muf16. Slip rear muf16. Slip rear muffler hanger (F) over rearfler hanger (F) over rearfler hanger (F) over rearfler hanger (F) over rear slip joint of mufslip joint of mufslip joint of mufslip joint of muffler (B) and hand tighten atfler (B) and hand tighten atfler (B) and hand tighten atfler (B) and hand tighten at this time.this time.this time.this time.

22. Inst22. Inst22. Inst22. Install turnout (D) slip joint over endall turnout (D) slip joint over endall turnout (D) slip joint over endall turnout (D) slip joint over end of tof tof tof tail pipe (C).ail pipe (C).ail pipe (C).ail pipe (C).

4. S4. S4. S4. Spray lubricant on front and rear tpray lubricant on front and rear tpray lubricant on front and rear tpray lubricant on front and rear tailailailail pipe rubber grommet.pipe rubber grommet.pipe rubber grommet.pipe rubber grommet.

5. Using a p5. Using a p5. Using a p5. Using a pair of channel lock pliers,air of channel lock pliers,air of channel lock pliers,air of channel lock pliers, remove hanger rods from bottom holes ofremove hanger rods from bottom holes ofremove hanger rods from bottom holes ofremove hanger rods from bottom holes of front and rear tfront and rear tfront and rear tfront and rear tailpipe rubber grommetailpipe rubber grommetailpipe rubber grommetailpipe rubber grommets.s.s.s.

6. Remove t6. Remove t6. Remove t6. Remove tail pipe assembly from theail pipe assembly from theail pipe assembly from theail pipe assembly from the rear of vehicle.rear of vehicle.rear of vehicle.rear of vehicle.

10. Remove muf10. Remove muf10. Remove muf10. Remove muffler and head pipefler and head pipefler and head pipefler and head pipe

assemblyassemblyassemblyassembly....

11111. Inst1. Inst1. Inst1. Install head pipe (A) hanger intoall head pipe (A) hanger intoall head pipe (A) hanger intoall head pipe (A) hanger into bottom hole of rubber grommet.bottom hole of rubber grommet.bottom hole of rubber grommet.bottom hole of rubber grommet.

12. Inst12. Inst12. Inst12. Install head pipe over studs and install head pipe over studs and install head pipe over studs and install head pipe over studs and installallallall flange nutflange nutflange nutflange nuts and align flange. using as and align flange. using as and align flange. using as and align flange. using a 15mm socket and ratchet, tighten nut15mm socket and ratchet, tighten nut15mm socket and ratchet, tighten nut15mm socket and ratchet, tighten nutssss

completelycompletelycompletelycompletely.... NOTE:NOTE:NOTE:NOTE: we recommend usingwe recommend usingwe recommend usingwe recommend using

anti-seize on threads.anti-seize on threads.anti-seize on threads.anti-seize on threads.

17. Position 3" clamp (E) on muf17. Position 3" clamp (E) on muf17. Position 3" clamp (E) on muf17. Position 3" clamp (E) on muffler (B)fler (B)fler (B)fler (B) and using a 9/16" deep socket, tightenand using a 9/16" deep socket, tightenand using a 9/16" deep socket, tightenand using a 9/16" deep socket, tighten

completelycompletelycompletelycompletely....

18. Inst18. Inst18. Inst18. Install tall tall tall tail pipe (C) into rear slip jointail pipe (C) into rear slip jointail pipe (C) into rear slip jointail pipe (C) into rear slip joint on mufon mufon mufon muffler (B).fler (B).fler (B).fler (B). NOTE:NOTE:NOTE:NOTE: ttttail pipe (C)ail pipe (C)ail pipe (C)ail pipe (C) should be instshould be instshould be instshould be installed with the hanger toalled with the hanger toalled with the hanger toalled with the hanger to the rear of the vehicle.the rear of the vehicle.the rear of the vehicle.the rear of the vehicle.

19. Inst19. Inst19. Inst19. Install tall tall tall tail pipe (C) hanger rod intoail pipe (C) hanger rod intoail pipe (C) hanger rod intoail pipe (C) hanger rod into bottom hole of rear rubber hangerbottom hole of rear rubber hangerbottom hole of rear rubber hangerbottom hole of rear rubber hanger grommet.grommet.grommet.grommet.

NOTE:NOTE:NOTE:NOTE: use anti-seize on threads.use anti-seize on threads.use anti-seize on threads.use anti-seize on threads.

23. Position turnout (D) to desired position.23. Position turnout (D) to desired position.23. Position turnout (D) to desired position.23. Position turnout (D) to desired positio

24. Position 3" clamp (I) over turnout (D)24. Position 3" clamp (I) over turnout (D)24. Position 3" clamp (I) over turnout (D)24. Position 3" clamp (I) over turnout (D) slip joint and tighten completely using aslip joint and tighten completely using aslip joint and tighten completely using aslip joint and tighten completely using a 9/16" deep socket.9/16" deep socket.9/16" deep socket.9/16" deep socket. NOTE:NOTE:NOTE:NOTE: use anti-seizeuse anti-seizeuse anti-seizeuse anti-seize on threads.on threads.on threads.on threads.

25.25.25.25. AfAfAfAfter instter instter instter installation, it is recommendedallation, it is recommendedallation, it is recommendedallation, it is recommended that all clampthat all clampthat all clampthat all clamps be retightened and joints be retightened and joints be retightened and joints be retightened and jointssss be tbe tbe tbe tack welded in three spot.ack welded in three spot.ack welded in three spot.ack welded in three spot.

26. Using a sof26. Using a sof26. Using a sof26. Using a soft cloth, remove all printt cloth, remove all printt cloth, remove all printt cloth, remove all printssss from turnout tip.from turnout tip.from turnout tip.from turnout tip.

27. Lower vehicle and reatt27. Lower vehicle and reatt27. Lower vehicle and reatt27. Lower vehicle and reattach theach theach theach the negative battery cable.negative battery cable.negative battery cable.negative battery cable.

28. Run vehicle until exhaust reaches28. Run vehicle until exhaust reaches28. Run vehicle until exhaust reaches28. Run vehicle until exhaust reaches operating temperature and retighten theoperating temperature and retighten theoperating temperature and retighten theoperating temperature and retighten the two 15mm flange nuttwo 15mm flange nuttwo 15mm flange nuttwo 15mm flange nuts.s.s.s.

NOTES:NOTES:NOTES:NOTES:

1)1)1)1) All exhaust systems will expAll exhaust systems will expAll exhaust systems will expAll exhaust systems will expand aboutand aboutand aboutand about 1" rearward when exhaust temperature1" rearward when exhaust temperature1" rearward when exhaust temperature1" rearward when exhaust temperature stststst

art to rise.art to rise.art to rise.art to rise.

2) Use2) Use2) Use2) Use Anti-seize on threads of clampAnti-seize on threads of clampAnti-seize on threads of clampAnti-seize on threads of clamps E,s E,s E,s E

F and GF and GF and GF and G....

13. Inst13. Inst13. Inst13. Install 3"all 3"all 3"all 3" clamp (E) over head pipe (A).clamp (E) over head pipe (A).clamp (E) over head pipe (A).clamp (E) over head pipe (A).

7. Using a 15mm socket and ratchet,7. Using a 15mm socket and ratchet,7. Using a 15mm socket and ratchet,7. Using a 15mm socket and ratchet, remove flange nutremove flange nutremove flange nutremove flange nuts from head pipe.s from head pipe.s from head pipe.s from head pipe.

14. Inst14. Inst14. Inst14. Install rear mufall rear mufall rear mufall rear muffler hanger clamp (F)fler hanger clamp (F)fler hanger clamp (F)fler hanger clamp (F) into the bottom hole of rear mufinto the bottom hole of rear mufinto the bottom hole of rear mufinto the bottom hole of rear mufflerflerflerfler hanger rubber grommet.hanger rubber grommet.hanger rubber grommet.hanger rubber grommet.

WWWWeeee recommend taking the truck to a muffler shop and having all slip connections tack welded.recommend taking the truck to a muffler shop and having all slip connections tack welded.recommend taking the truck to a muffler shop and having all slip connections tack welded.recommend taking the truck to a muffler shop and having all slip connections tack welded.

20. With t20. With t20. With t20. With tail pipe (C) aligned to desiredail pipe (C) aligned to desiredail pipe (C) aligned to desiredail pipe (C) aligned to desired position, using a 9/16" deep socket,position, using a 9/16" deep socket,position, using a 9/16" deep socket,position, using a 9/16" deep socket, tighten nuttighten nuttighten nuttighten nuts on rear mufs on rear mufs on rear mufs on rear muffler hanger (F)fler hanger (F)fler hanger (F)fler hanger (F)

completelycompletelycompletelycompletely....

NOTE:NOTE:NOTE:NOTE: use anti-seize on threads.use anti-seize on threads.use anti-seize on threads.use anti-seize on threads.

21. Inst21. Inst21. Inst21. Install 3" clamp (G) over end of tall 3" clamp (G) over end of tall 3" clamp (G) over end of tall 3" clamp (G) over end of tailailailail pipe (C).pipe (C).pipe (C).pipe (C).