Browse Add-a-Leaf Kits & Helper Springs for Your 1993 Gmc C3500 Pickup SIERRA

LP-25 Progressive Load Leveler, Helper Spring, 2500 lbs. Capacity, 3 Leaf Stack For Leaf Spring Applications, Requires Mounting Kit PN[25250 Or 25300]

• Adds New Life To Old Springs
• High Quality Spring Steel Leaves

• For Use w/Bottom Leaf Less Than 35 in.
• Remove Factory Overload Springs/May Require U-Bolt/Center Bolt Replacement
• Will Not Fit w/ Rear A.C.

LP-25 Progressive Load Leveler, Helper Spring, 2500 lbs. Capacity, 3 Leaf Stack, Requires Mounting Kit PN[25250]

• Adds New Life To Old Springs
• High Quality Spring Steel Leaves

• For Use w/Bottom Leaf Greater Than 35 in.
• Remove Factory Overload Springs/May Require U-Bolt/Center Bolt Replacement

LP-35 Progressive Load Leveler, Helper Spring, 3500 lbs. Capacity, 4 Leaf Stack

• Adds New Life To Old Springs
• High Quality Spring Steel Leaves

• For Use w/Bottom Leaf Greater Than 35 in.
• Remove Factory Overload Springs/May Require U-Bolt/Center Bolt Replacement
• Requires Mounting Kit PN[25250] Or w/7 Leaves PN[25400]

SuperSprings, Specialist, Provides From 800 lbs To 6000 lbs Of Additional Capacity, 43 in. L x 3 in. W x .558 in., Never Exceed Gross Vehicle Weight Rating

• Bolt-On Suspension Enhancement System
• Easily Install Directly Above Vehicles Rear Leaf S

• 4000 lb. Rating
• 5000 lb. Rating
• 6000 lb. Rating
• Cutaway Models Only
• Cutaway; For Extra HD Commercial Load Applications
• Ensure Clearance; Motorhome Models Differ
• For Extra Heavy Duty Loading Use
• For Heavy Loading Use
• PN[P1KT] Optional For Rough Road Conditions
• PN[P5KT] Optional For Rough Road Conditions
• Rating Is Total Of Veh. Payload Plus SuperSprings Capacity
• Remove Front Spring Clip
• Requires Mod. To PSP1
• Super Duty Over 7500 GVWR
• Trim Included PSP .25 in. On Both Ends To Fit
• With Factory Top Overload
• With Factory Top Overload; Square Shackle To The Front
• Without Factory Top Overload

Pro Series, Helper Springs, 2500 lbs. Capacity, SilentRide, Hammer Tone Powder Coat Finish, Simple Bolt On Installation

• Adds New Life To Old Springs
• Enables Trucks To Carry Loads w/More Stability/Con

• Do Not Use w/ Factory Overload Contact Springs
• Will Not Fit w/ Rear A.C.

SuperSprings, Specialist, Provides From 800 lbs To 6000 lbs Of Additional Capacity, 47 in. L x 3 in. W x .499 in., Never Exceed Gross Vehicle Weight Rating

• Bolt-On Suspension Enhancement System
• Easily Install Directly Above Vehicles Rear Leaf S

• 3000 lb. or 5000 lb. Rationg w/o Factory Top Overload
• 3000 lb. Rating
• 3500 lb. Rating
• 4000 lb. Rating
• 4000 lb. Rating w/Factory Top Overload
• Cutaway Models Only
• Order MXKT Mounting Kit
• PN[P1KT] Optional For Rough Road Conditions
• Rating Is Total Of Veh. Payload Plus SuperSprings Capacity
• Requires PN[MTKT]
• Spec.Order5.14in.U-Bolts Req.If Veh.Spring Height More Than 2.75in. At Axle
• Square Shackle To Front
• Square Shackle To Rear
• Super Duty Over 7500 GVWR
• Trim Included PSP .25 in. On Both Ends To Fit
• With Factory Top Overload PN[P3KT] Optional For Rough Road Conditions
• With Factory Top Overload; Square Shackle To The Rear
• Without Factory Top Overload
• Without Factory Top Overload; Mounting Kit PN[MTKT] Required
• Without Factory Top Overload; Square Shackle To The Front

SuperSprings, Heavy Duty, Provides From 800 lbs To 6000 lbs Of Additional Capacity, 49 in. L x 3 in. W x .946 in., Never Exceed Gross Vehicle Weight Rating

• Bolt-On Suspension Enhancement System
• Easily Install Directly Above Vehicles Rear Leaf S

• 3000 lb. Rating
• 4000 lb. Rating
• 5000 lb. Rating
• Check Vertical Clearance
• Cutaway Models Only
• For Heavy Loading Use
• Order MXKT Mounting Kit
• PN[P1KT] Optional For Rough Road Conditions
• Rating Is Total Of Veh. Payload Plus SuperSprings Capacity
• Requires PN[MTKT]
• Spec.Order5.14in.U-Bolts Req.If Veh.Spring Height More Than 2.75in. At Axle
• Super Duty Over 7500 GVWR
• With Factory Top Overload; Square Shackle To The Rear
• Without Factory Top Overload
• Without Factory Top Overload; Square Shackle To The Front