rancho 2500 4in

Rancho 4in Lift Kit – Chevy



Product Description

If you’re looking for a suspension lift kit that’s engineered to perform at the highest level off-road & on, built tough to take a pounding, and last for the life of your vehicle, then Rancho Suspension is your kit. Rancho has been in the business of providing rugged off-road products for 50 years, and is a leader in innovative suspension and shock absorber design.

Rancho’s Torsion Bar Drop, Crossmember, Knuckle Suspension System for the Silverado / Sierra 2500 HD achieves front lift by dropping the torsion bars, extended length steering knuckles and a heavy duty one piece subframe. Lift blocks and U-bolts bring up the rear. This kit leaves the factory steering and alignment geometry intact by maintaining the factory location of the rack & pinion, so steering correction is not required and factory ride characteristics are left intact. This kit will allow you to run up to a 35″ tire and also works with the stock wheels and tires. No drivetrain or exhaust modifications are required. 

  • Kit Number: RS6564B
  • Approximate Lift: 4″ Front, 2.5″ Rear
  • Developed Tire Size: 35×12.50 R18
  • Actual Tire Size: 34.8×12.50
  • Developed Wheel Size: 18×9
  • Developed Wheel Backspacing: 6.0
  • Black powdercoat finish
  • All necessary installation hardware & detailed installation instructions included
  • This is a complete suspension system with everything you need to lift your vehicle except the shocks. 
  • This kit & all its components are brand new, factory sealed w/ full manufactures limited lifetime warranty



  • Made in the U.S.A.
  • Fits up to 35-in. tires
  • One piece reinforced sub-frame – made from high-strength, low-alloy steel and DOM tubing
  • No drivetrain or exhaust modifications required
  • Allows reuse of the stock wheels
  • Extended cast steering knuckles
  • Tubular aft braces
  • Maintains factory location of rack and pinion
  • Maintains factory alignment specifications
  • Limited lifetime warranty



  • Provides maximum structural integrity
  • Provides exceptional strength while installing easily and maintaining proper CV and drive shaft angles to minimize vibrations
  • Less installation time
  • Reduces cost by reusing stock wheels
  • Does not increase track width & ensures proper steering geometry
  • Provides increased structural rigidity
  • O.E. location for rack and pinion
  • O.E. alignment specifications



  • Shocks sold separately
  • Actual tire size varies between manufacturers
  • Vehicle may require alignment after kit is installed
  • Trimming or modification may be required to provide proper clearance for the development wheel and tire
  • All ride height increases are approximate and will vary due to vehicle specifications. (Engine size, factory options, trail equipment, ect.)
  • The net raised height achieved with this system is dependent upon the adjustment of the torsion bars prior to installation. Example: If the Rancho System is listed as 3″ but the torsion bars on a vehicle are adjusted to 1″ over stock, the net raised height will be 2″. The net raised height will be 1″ less on vehicles equipped with the Z71 Off Road Package.


Parts Included

  • Box Plate – (176613)
  • Differential Drop – (Left 176614, Right 176615)
  • Front Bumpstop Drops – Forward (176616 x2)
  • Brakeline Drop Bracket & Hardware – (860686)
  • Brakeline Drop Brackets – (176617 x2)
  • End Link Hardware Kit – (860180)
  • .75 x 156 x 9.5 Sleeves – (420044 x2)
  • Front Bumpstop Drop Hardware – (860687)
  • Differential Drop Hardware – (860688)
  • Subframe Hardware – (860869)
  • T-Bar Crossmember Drop Bracket – (Left 176619, Right 176627)
  • T-Bar Drop Hardware – (860690)
  • Rear Bumpstop Spacers – (176620 x2)
  • T-Bar Relocator Spacers – Aft (176628 x2)
  • T-Bar Relocator Spacers – Fore (176629 x2)
  • Rear Bumpstop Spacer Hardware – (860691)
  • Skid Plate – (176621)
  • Skid Plate Hardware – (860699)
  • Aft Brace Brackets – (176138 x2)
  • Aft Brace Hardware Kit – (860474)
  • .75 x .095 x 2.73 Sleeves – (420072 x4)
  • Bushings – (520041 x8)
  • Nut Brackets – (176137 x2)
  • Rear Brake Line Relocation Hardware – (860696)
  • E-Brake Drop Bracket – (176624)
  • Rear Brake Line Drop Bracket – (176625)
  • Spacer Block Sub-Assembly – (860694)
  • Machined Spacer Blocks – (15108 x2)
  • Spacer Block Alignment Pins – (10481 x2)
  • U-Bolts – (740031 x4)
  • Installation Instructions – (88564)
  • Knuckles – (Left 176610, Right 176611) – Extended cast steering knuckles
  • Subframe – (176612) – One piece reinforced sub-frame – made from high-strength, low-alloy steel and DOM tubing
  • Aft Braces – (176618 x2) – Tubular

Vehicle Fitment

  • 2011-2013 Chevy Silverado 2500HD 4WD Gas/Diesel
  • 2011-2013 GMC Sierra 2500HD 4WD Gas/Diesel

If you are unsure of the Suspension Lift Kit you need to fit your vehicle, please contact us before ordering. We are happy to take the time to make sure you get the proper Suspension Lift Kit for your vehicle. We recommend fitment based on published industry guides as well as our many years of experience with Suspension Lift Kits and custom vehicles, however, vehicle fitment may vary, particularly in the case of modified or custom vehicles, or with over sized wheels/tires. Please inspect Suspension Lift Kit for damage/wrong part number before installing or warranty/returns will be void. All sales are final. Before orderingSuspension Lift Kitplease send us the year, make & model of your vehicle. We cannot ship until we have this information. We are an authorized Rancho dealer and offer the complete line of Rancho products. If you do not see the part you are looking for, give us a call and we will be more than happy to help you find just what your looking for at a competitive price & with unbeatable customer service.

Rancho Suspension: Warranty & Ride Guarantee

Additional Information

Drive Type

2WD, 4WD


There are no reviews yet.

Be the first to review “Rancho 4in Lift Kit – Chevy”