How to Install SkyJacker 4 in. Standard Suspension Lift Kit w/ Shocks (14-17 4WD Sierra 1500, Excluding Denali) on your GMC Sierra

1. With the vehicle on a level concrete or asphalt surface, set the emergency brake & block the rear tires / wheels. Place a floor jack under the lower control arm front cross member & raise the front of the vehicle. Place jack stands under the frame rails behind the front wheel wells & lower the frame onto the jack stands.

2. Remove the front tires / wheels using a 22mm socket. (See Photo # 1)

3. Remove the OEM outer tie rod end nuts from the OEM steering knuckles using a 18mm socket & disconnect the OEM outer tie rod ends from the OEM steering knuckles using a tie rod puller or similar tool. (See Photo # 2)

4. Disconnect the OEM brake calipers from the OEM brake rotors & disconnect the OEM brake lines from the OEM upper A-arms. (See Photo # 3) Simply wire the OEM brake calipers out of the way. It will not be necessary to disconnect the OEM brake lines from the OEM brake calipers.

5. Remove the OEM sway bar end links using a 15mm socket & remove the OEM sway bar. (See Photo # 4)

6. Remove the OEM strut assemblies by removing the lower mounting bolts & upper strut retaining nuts. (See Photo # 5)

7. Disconnect the OEM upper & lower A-arms from the OEM steering knuckles using a 18mm socket. It may be necessary to strike the side of the OEM steering knuckles to dislodge the OEM ball joints. Be careful not to damage the OEM ball joints. (See Photo # 6)

8. Remove the OEM CV axles using a 15mm socket. (See Photo # 7)

9. Remove the OEM front skid plates using a 15mm socket. Disconnect the OEM lower A-arms using a 18mm & 24mm socket.

10. Remove the OEM rear cross member using a 18mm socket. (See Photo # 8)

11. Disconnect the OEM steering shaft & all electrical connections from the OEM rack & pinion. (See Arrow Photo # 9) Remove the OEM rack & pinion using a 18mm & 24mm socket. (See Photo # 10)

12. Disconnect the OEM front drive shaft from the front differential & support the front differential using a transmission jack. Remove the OEM front differential mounting bolts using a 15mm & 18mm socket & remove the front differential. (See Photo # 11)

13. It will be necessary to cut the OEM skid plate bracket from the passenger side of the OEM front cross member using a reciprocating saw, cut off wheel, or similar tool. Note: Be careful not to cut into the OEM front cross member. (See Photo # 12)

14. It will be necessary to cut the driver side frame rail where the OEM rear cross member was located. Measure toward the frame 3" at the top of the OEM rear cross member & make a mark. Measure toward the frame 1" at the bottom of the OEM rear cross member & make a mark. Draw a line connecting the two marks & cut using a reciprocating saw, cut off wheel, or similar tool. (See Photo # 13 / Before View & # 14 / After View)

15. To reinstall the OEM front differential, install the new Skyjacker aluminum front differential spacers between the OEM front differential mounts & the frame using the supplied 12mm x 120mm bolts, washers, & nuts. (See Arrow Photo # 15) Note: The thicker (1" thick) spacers are for the front mounts & the thinner (.875" thick) spacers are for the rear mounts.

16. Reconnect the OEM front drive shaft using the OEM hardware.

17. Install the OEM rack & pinion using a 18mm & 24mm socket. (See Photo # 10) Reconnect the OEM steering shaft & all electrical connections to the OEM rack & pinion. (See Arrow Photo # 9)

18. Install the new Skyjacker rear cross member using the OEM 12mm hardware & the supplied 5/8" x 5 1/2" fine thread bolts, washers, & nuts. (See Photo # 16)

19. Install the new Skyjacker aluminum front cross member spacers between the new Skyjacker front cross member & the frame. Install the new Skyjacker front cross member using the supplied crush sleeves, 5/8" x 5 1/2" fine thread bolts, washers, & nuts. (See Photo # 17)

20. Attach the OEM A-arms to the new Skyjacker front & rear cross members using the OEM hardware. (See Photo # 18)

21. Remove the OEM hub bearing assemblies from the OEM steering knuckles using a 15mm socket. Install the OEM hub bearing assemblies to the new Skyjacker steering knuckles using the OEM hardware. (See Photo # 19)

22. Install the new Skyjacker strut spacers on the top of each OEM strut assembly using the OEM hardware & 18mm wrench. (See Photo # 20)

23. Install the upper mount of the strut assemblies using the supplied 10mm nuts. (See Photo # 21) Install the lower mount of the strut assemblies using the OEM hardware. (See Photo # 22)

24. Attach the new Skyjacker steering knuckles to the upper & lower A-arms using the OEM hardware. Install the new Skyjacker CV axle spacers & OEM CV axles using the supplied 10mm x 50 mm bolts & thread locking compound. (See Photo # 23)

25. Install the new Skyjacker ABS line & brake line brackets to the frame using the supplied 5/16" x 1" fine thread bolts, washers, & nuts. (See Photo # 24)

26. Attach the OEM outer tie rod ends to the new Skyjacker steering knuckles using the OEM hardware. Reinstall the OEM brake rotors & OEM brake calipers using the OEM hardware.

27. Reinstall the OEM sway bar using the new Skyjacker sway bar end links. Install the new Skyjacker sway bar end links with the supplied smaller 5/8" washer on top of the OEM A-arm & the supplied larger 5/8" washer & nut on the bottom of the OEM A-arm. Note: Install the new sway bar end links with the pivoting end at the A-arm. (See Photo # 25)

28. Install the front tires / wheels using a 22mm socket & lower the front of the vehicle to the ground.

30. Remove the rear tires / wheels using a 22mm socket.

31. Support the rear differential & remove the OEM rear shocks & OEM U-bolts.

32. Install the new Skyjacker 2" rear lift blocks on top of the OEM rear blocks & install the new Skyjacker U-bolts. (See Photo # 26)

33. Install the new Skyjacker rear shocks.

34. Install the rear tires / wheels using a 22mm socket, & lower the rear of the vehicle to the ground.