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4in GM Suspension Lift System (52in Rear Springs)

4in GM Suspension Lift System (52in Rear Springs)
In stock
SKU: 250.20 | Brand: Rough Country
Make sure it fits!


  • Download Instructions
  • 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

  • ONLY fits models with 52" rear leaf springs.
  • 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
  • Lifted leaf springs
  • U-bolts
  • Hardware
  • Shocks
  • (4) Premium N2.0 series

Fitment Table

Years Drive Make Model
1977-19874WDChevrolet3/4-Ton Pickup
1977-19874WDChevrolet3/4-Ton Suburban
1977-19874WDGMC3/4-Ton Pickup
1977-19874WDGMC3/4-Ton Suburban
Always check the product's overview, for more important fitment information


Tire Wheel Backspacing Offset
35x12.50 R1515x84.5in-
Due to differences in manufacturing, dimension and inflated measurements, tire and wheel combinations should be test fit prior to installation.


  1. good option - Posted by: Ken (7/3/15)

    the lift kit went on very easy, the old suspension was very happy not coming off. the 6-8 hours to install was close but make sure you add 2 days to cut off your old one. my suspension was tired and sagged but the 4 inch lift added 6 3/4 inches front and rear. The ride is better than stock and not as rough as some online reviews. I would recomend but remember your old suspension is old and you will get extra lift

  2. Ok - Posted by: Alex (10/29/13)

    Pretty good

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