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RedHead Steering Gears 2872 Steering Box (15:1 Ratio)
PART#
2872 | SKU RH2872
★★★★★
Vehicle Fitment For:
2001-2007 GM Silverado/Sierra 2500HD/3500HD (3-Groove/33-Spline)
See full application list below
$456.00
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Description
Replace the damaged or worn steering gear in your vehicle with the RedHead Steering Gears 2872 Steering Box (15:1 Ratio). RedHead is a family-owned and operated company with more than 40 years of experience providing quality remanufactured steering boxes. Every RedHead Steering Box is remanufactured from quality materials to be better and stronger than the factory unit. Each Steering Box is built for a direct-fit installation that fits in the factory location.
Features:
- New O-Rings
- Remanufactured
- Direct-Fit Replacement
- Meets & Exceeds Factory Specs
- Shafts Are Flame Sprayed Or Replaced As Needed
- New Control Valves Installed On Some Applications
- Housing Are Machined And Needle Bearings Installed
- Sealing Surface Polished To A Higher Polish Than New
- Sector Shaft Checked On A Lathe For Straight And True
- Worm And Piston Assembled With New Precision Fit Steel Ball Bearings
SPECIFICATIONS:
Ratio: 15:1 (3 Turns)
Input: Smooth Input w/ 2 Flats & Notched
Output: 33 Spline Sector 3 Master Spline
Fittings: O-Ring
Input: Smooth Input w/ 2 Flats & Notched
Output: 33 Spline Sector 3 Master Spline
Fittings: O-Ring
Weight: 29.00 lbs
Notes:
This Unit Is For 1999-2007 Chevrolet Silverado or GMC Sierra Pickup Trucks, Suburbans, & YukonsThis
Steering Gear Box is available in a 4 Turn option which is applicable
if the vehicle is used for off-roading, has tires that are at least 37
inches in diameter, and more leverage is desired when steering (RedHead
part # 2872 4T)
Common Questions
HOW DO I BLEED, OR PURGE AIR, FROM MY STEERING GEAR BOX SYSTEM?
1. After installing the gearbox, fill the system with fluid.
2. Raise the front wheels off the ground, do not start the vehicle.
3. Work the steering wheel back and forth, lock to lock, 15-20 times.
4. Leave the vehicle sit (overnight is best) at least 2 hours
5. Top the pump reservoir off again.
6. Work the steering wheel back and forth again 7-10 times
7. Have a person in the vehicle and another at the pump reservoir with a container of fluid & funnel ready to pour if necessary.
8. Instruct the person in the vehicle to start the engine. As soon as this happens, if the fluid level drops, be ready to pour in more fluid. The level must be kept at an almost full level or it will suck in air again.
9. If this procedure is followed properly, the air problem will be solved.
2. Raise the front wheels off the ground, do not start the vehicle.
3. Work the steering wheel back and forth, lock to lock, 15-20 times.
4. Leave the vehicle sit (overnight is best) at least 2 hours
5. Top the pump reservoir off again.
6. Work the steering wheel back and forth again 7-10 times
7. Have a person in the vehicle and another at the pump reservoir with a container of fluid & funnel ready to pour if necessary.
8. Instruct the person in the vehicle to start the engine. As soon as this happens, if the fluid level drops, be ready to pour in more fluid. The level must be kept at an almost full level or it will suck in air again.
9. If this procedure is followed properly, the air problem will be solved.
WHAT POWER STEERING FLUID SHOULD I USE?
RedHead highly recommends using the same fluid that the manufacturer of your
vehicle recommends. It is always best to use a name-brand fluid. Their
power steering gears are tested under pressure with Dexron 3 ATF before
they leave the factory. If you decide to change from what the manufacturer
recommends then Dexron 3, or comparable fluid, is an acceptable alternative.
ARE REDHEAD GEARBOXES SENT OUT IN CENTER POSITION?
Yes, they are sent out on center.
Manufacturer Warranty*:
1 Year / Unlimited Mileage
1 Year / Unlimited Mileage
Instructions & Tech Info
Installation Info
Recommended Specialty Tool
Reviews For RedHead Steering Gears 2872
Verified Buyer
Be prepared for it to cost about $100 to return core
Dj (Minnesota) | October 25th, 2025
Core is 275, and it just cost me $100 to ship it back. I'll never use XDP again.
Note From Store Owner: Thank you for your feedback. We understand that shipping costs for returning cores can be frustrating. Please note that these charges are determined by the carrier or shipping service you choose and XDP does not add any additional fees for core returns. If there's anything we can do to make things right, please don’t hesitate to reach out to our Customer Service Team using the help desk feature on our website.
Verified Buyer
Steering box
Jacob (CA) | August 20th, 2025
Second redhead box, first one failed around 1 1/2 years of use, slop and lower seal leaking. I figured I'd give them a second chance.
New box is tight, and feels amazing. BUT, the box packaging was covered in oil, and somehow 2 of the 3 mounting bolt threads were messed up, and I had to buy a tap to clean them up. Found that out when trying to hold the box up and get the bolts started, then took it out and inspected the threads, after 15 minutes of not being able to get the bolts to catch.
My take is, if this box fails in the same time frame, Ill buy else where, such as Blue Top, XDP, PSC. This box for now is good, just take this review with a grain of salt, as I am currently fairly happy with this steering box I got, but not so good past experiences.
Verified Buyer
2005 Duramax Redtop Steering Gear Box
05Duramax (Simi Valley, California) | March 28th, 2025
The redtop steering gear box fit perfect and my steering wheel feels like my race car. Great quality and easy to install.
Verified Buyer
Great steering box
Jon (Snohomish, WA) | June 28th, 2024
Very tight steering box that works right out of the box. No adjustments needed.
Verified Buyer
Clean tight box
Wayne (AZ) | April 20th, 2024
Clean tight box. Has no leaks, it's what you should be able to get from any company but only a few care enough to do a good job.
Verified Buyer
2006 Duramax steering box
Jesse (Nebraska) | March 18th, 2024
Really tightened up my steering. My old gearbox was shot. Install was fairly easy as well. Shipping was fast.
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Frequently Asked Questions
Is the 2827 box direct fit for 2004.5 Duramax Silverado 2500HD 4wd?
Yesm the RedHead Steering Gears 2872 Steering Box (15:1 Ratio) will work on your application.
What is the torque spec for the Pitman Arm on a 2004 Chevy Silverado 2500HD?
The torque spec for the pitman arm is 184 ft-lbs.
Does this come with new o-rings for the pressure lines?
Yes, the RedHead Steering Gears 2872 Steering Box (15:1 Ratio) does include new O-rings.
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Specifications For RedHead Steering Gears 2872
MPN
2872
SKU
RH2872
ID
105653
Manufacturer Name
RedHead Steering Gears
Shipping Weight
29.00 lb.
Shipping Length
9 in.
Shipping Width
11 in.
Shipping Height
13 in.
Fuel Type
Diesel / Gas
Manufacturer Warranty*
1 Year / Unlimited Mileage
Prop 65
WARNING: Cancer & Reproductive Harm - P65Warnings.ca.gov
WARNING: Cancer & Reproductive Harm - P65Warnings.ca.gov
Internal
L23R26
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Product prices marked with an * may require additonal fees, such as a core charge, which will be displayed in the cart.