DmaxStore Power Steering Box, 2007.5-2010 LMM

Part# ‍DMAX-SG-0710

$599.99

WARNING: Cancer and Reproductive Harm - www.P65Warnings.Ca.Gov

Fits: 2007.5 thru 2010 Chevy Silverado/GMC Sierra 2500HD/3500HD LMM Duramax Diesel

GM has discontinued steering boxes for a lot of these Duramax trucks. This left everyone with low quality aftermarket replacements that either leaked or had play right out of the box. DmaxStore now has a solution for this with our 100% BRAND NEW steering box with NO CORE CHARGE! These high quality steering boxes are designed off of the OEM steering box while using ALL brand new parts. They include the latest updated revisions to ensure reliability and longevity. Each individual steering box is bench tested to confirm optimal performance and reliability before it is boxed up, test results are included. These steering boxes still utilize the factory style 3-spline pitman arm, unlike some aftermarket options which will require you to switch to a 4 spline. We have tested many aftermarket options only to come up with dismal results and premature failures. This is the best replacement steering box on the market and we are proud to offer a 3 year warranty for extra peace of mind. 

Features:

  • 100% BRAND NEW, NO CORE CHARGE!
  • 3 Year Warranty
  • Utilizes factory 3-spline pitman arm
  • Updated OE design with latest revisions available
  • All steering boxes are bench tested with test results

Includes:

  • Brand New Steering Gear
  • Sector Shaft Nut and Lock Washer
  • Installation Instructions

Optional:

DmaxStore Notes:

  • We HIGHLY recommend completely flushing the power steering/hydroboost system before installing ANY new hard parts to prevent contamination failure. Failures caused by contamination will not be covered under warranty
  • Fits 3-spline Pitman Arms ONLY!
  • Included Install instructions must be followed!

Replaces Part#:

  • GM 19434141
  • GM 19330624

Customer Reviews

Based on 7 reviews
86%
(6)
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14%
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b
bin rat
2007.5 steering box

works well and install went good. very pleased

N
Nestor Gomez

I am somewhat disappointed and annoyed. I bought one on May 27, 2025, and two months later it failed. They are going to send me a replacement under warranty—which I appreciate—but I don't think it's fair that I have to pay for shipping both the new unit and the defective one. That's $80 down the drain. This is garbage.
They should cover the costs; their product failed, and now I have to pay—$80 for shipping and $400 for the mechanic. I do not recommend continuing to buy products here.

A
Anthony Taylor
Steering gear box

After buying a cheaper gear box that failed after install I purchased DmaxStores gear box and it’s been great. Have been running it two month's now with no issue.

J
Jack Chaneyworth
It is a good box and was packed well

It is a good box and was packed well. The only problem the mechanic found was it was put together incorrectly as the steering wheel was off center when he finished so I had to get it aligned right away. It only goes on one way, and he installed it the only way it would go as I looked at it while being installed.

J
Jacob
Great replacement!

Only have a few miles on it, but so far it's doing good! No leaks. Nice and tight, no more slop. Way smoother than my factory unit was. Takes less effort to turn the steering wheel. This gearbox replaced my original one that only 134k miles.