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DJM Suspension DJM2599-3/5 Lowering Kit, 99-06 C1500, 3/5 Drop
DJM Suspension DJM2599-3/5 Lowering Kit, 99-06 C1500, 3/5 Drop

DJM Suspension DJM2599-3/5 Lowering Kit, 99-06 C1500, 3/5 Drop

1999 C1500, 1999 C1500 Suburban, 99-06 Silverado 1500, 99-06 Sierra 1500, 1999 Silverado

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DJM Suspension DJM2599-3/5 Lowering Kit, 99-06 C1500, 3/5 Drop
DJM Suspension DJM2599-3/5 Lowering Kit, 99-06 C1500, 3/5 Drop
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DJM Suspension estimates this item will ship on or before February 1st.
Part # 1361016
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Lowered trucks handle better, look better and, when lowered correctly with properly engineered and quality matched components, they ride nice as well!

DJM Suspension has thought of everything for this kit! New Calmax Control Arms, Axle Flip Kit and everything you need to get that perfect ride height! This kit is ready to go out of the box and installs in the factory location!  By using factory coils you will maintain that smooth ride you had right from the factory, no teeth chattering with this kit!

This kit will require you to C-Notch your frame as this is the best way to drastically lower the rear end of your truck. Support brackets are included to reinforce your frame as well as DJM’s adjustable axle brackets.

*Note: With lowering your vehicle 5 inches or more we recommend replacing your front shocks with 1361415 and 1361800 for driver rear and 1361900 for passenger rear. The shock extenders correct the shock angle so they function properly and centers the rear axle.


  • Fits 1999-2006 Chevy C1500 
  • Front Drop: 3 Inches
  • Rear Drop: 5 Inches
  • 3” Drop Calmax Lower Control Arms
  • 5” Rear Flip Kit
  • Shock Extender Kit
  • U-Bolt Kit
  • All Mounting Hardware

Lower Control Arms Instructions (PDF)

Rear Hanger & Shackles Instructions (PDF)


Some parts are not legal for use in California or other states with similar laws/regulations

What's In The Kit

Each kit from Speedway Motors is carefully packaged and delivered right to your door. Below is a list of all the items you should expect to receive when you order this kit. Some of these items may also be available for sale individually if you're here looking for replacement parts.
  • DJM Suspension CA2599L-3 Calmax Control Arm 99-06 C1500,3 In Drop
    Qty x 1
  • DJM Suspension FK2599-6 Axle Flip Kit, 99-06 C1500, 6 Inch Drop
    Qty x 1
  • DJM Suspension SH1099 Lifting Shackle, 99-00 C1500, 1 Inch Lift
    Qty x 1

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