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6in GM Suspension Lift Kit

GM 6" Suspension Lift Kit  [125.20]
In stock
SKU: 125.20 | Brand: Rough Country
Make sure it fits!


  • Install Time: 6 - 8 hours
    Average estimated install time peformed by a professional shop or mechanic.
  • Features

  • Increased ground clearance
  • Includes application valved N2.0 series shock absorbers which offer the best in balanced performance for on and off-road use.
  • Notes

  • If vehicle is equipped with a front sway-bar, drop brackets are recommended. (SKU: 1019)
  • If vehicle is equipped with factory front quad shocks (4 total front shocks), please add Factory Quad Shock kit below (SKU: Q20027).
This product features Rough Country's Lifetime Replacement Warranty. All products are warranted to be free from defects in material and craftsmanship for the life of the vehicle if utilized in accordance with the manufacturer's instructions for installation and operation of said products. For complete details and coverage information please click here.
We are proud to offer Same Day Shipping. If you place your order before 4pm (cst) your order will be shipped that day. Parts ordered must be in stock for the order to ship. Approximately 97% of all orders placed leave our warehouses within 24 to 48 hours(not including weekends & holidays). For complete details please click here.


  • Front
  • Lifted leaf springs
  • Steering arm
  • Brake line relocation brackets
  • U-bolts
  • Hardware
  • Rear
  • 4" lift blocks
  • Add-a-leaf springs
  • U-bolts
  • Hardware
  • Shocks
  • (4) Premium N2.0 series

Fitment Table

Years Drive Make Model
1973-19764WDChevrolet1/2-Ton Pickup
1973-19764WDChevrolet1/2-Ton Suburban
1973-19764WDGMC1/2-Ton Pickup
1973-19764WDGMC1/2-Ton Suburban
Always check the product's overview, for more important fitment information


Tire Wheel Backspacing Offset
37x13.50 R1515x84.5in-
Due to differences in manufacturing, dimension and inflated measurements, tire and wheel combinations should be test fit prior to installation.


  1. Good Lift - Posted by: Timothy (6/30/14)

    Would buy it again! Good lift. Positive: the price, lifts vehicle 6 inches from factory height (actual lift 7.75 inches with installation of lift kit, rear lifted 6.75 inches from original height) every part needed was included and the ride quality was better than with worn out factory components. Things to improve: would recomend buying extended brake lines for front and rear. Optional improvement: old springs in rear sag a lot and the truck gains a nose up attitude even with lift blocks and add-a-leaf(would recomend new 6 inch lift springs for rear). Overall I would recommend this lift to a friend.

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