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

4in GM Suspension Lift System (52in Rear Springs)
In stock
SKU: 245.20 | 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
1977-19874WDChevrolet1/2-Ton Pickup
1977-19914WDChevrolet1/2-Ton Suburban
1977-19874WDGMC1/2-Ton Pickup
1977-19914WDGMC1/2-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. 4" all spring lift close to 6" - Posted by: luecke83 (8/7/15)

    I got the full spring lift because my springs were a little weak and wanted to go with bigger tires also. I'm not sure if it will settle a little with time but it's close to 6" taller then before. It's fine with me just letting the next guy know. The front was ok to do got all of the bolts out. The rear was a different story, had to cut the spring bolts. It would have been nice if the kit would include the 9/16 x 4.5" bolts. They are a little tough to find. Also the extended brake lines are the way to go. The line extensions that come with the kit are junk. I also ordered the shock boots with the lift.

  2. installation and quality of the 4 inch lift - Posted by: Joe (5/31/15)

    The value is great, the quality of the ride is really good. I know in previous review of roughcountry lifts people say they ride really rough, well that is not the case here at all! My only complaint is that there was no new hardware for the shock and leaf spring bolts, other than that it is outstanding:) I would definitely buy another one

  3. 4 in spring lift - Posted by: clay (4/24/15)

    Giving it a 4, star on value because. It did not come with spring bolts had to try and use old one and buy some new. Also. No shock boot covers. Other than that I love it

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