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Axles - Differentials | 2017-2019 GM 6.6 Duramax L5P

The 2017-2019 Duramax equipped 2500HD and 3500 trucks feature an IFS (Independent Front Suspension) AAM 9.25" assembly up front and an AAM 11.8 out back. From the factory, these housings were typicall ... read more

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BD 1030711 2 Low UnLoc 15-19 GM 2500HD / 3500 | 14-19 GM 1500 BD-1030711 2.00 BD 1030711 2 Low UnLoc 15-19 GM 2500HD / 3500 | 14-19 GM 1500 BD-Power 1030711 Have you ever wanted the benefits of engaging 4 Low, but without lurch you get when turning? Now you can with the BD 2 Low kit for your 2015-2019 Chevy. ARB Air Compressor Manifold Kit 171503 ARB-171503 10.00 ARB Air Compressor Manifold Kit 171503 ARB 171503 Connect your air lockers to your CKMTA12 with the ARB Air Compressor Manifold Kit! Once installed you'll be able to run two air lockers. ARB CKMA12 On-Board High Performance 12 Volt Air Compressor ARB-CKMA12 12.00 ARB CKMA12 On-Board High Performance 12 Volt Air Compressor ARB CKMA12 The ARB Heavy Duty Compressor is a life saver by delivering available air on tap whenever you need it. ARB E-Z Deflator Kit ARB505 2.00 ARB E-Z Deflator Kit ARB ARB505
$ 54 2050-01-01
Looking for an easy way to deflate your tires? ARB's E-Z deflator will do the trick with it's quick and easy tire deflation and accurate pressure readings. ARB On-Board High Performance 12 Volt Air Compressor ARB-CKSA12 8.00 ARB On-Board High Performance 12 Volt Air Compressor ARB CKSA12 This permanently mounted air compressor is specifically designed to be used with the installation of ARB Air Lockers. This kit comes complete with a full wiring loom with air locker solenoid plug in contact, mounting hardware with reinforcing bracket, and a quality compressor isolating switch. ARB On-Board High Performance 12 Volt Twin Air Compressor ARB-CKMTA12 22.00 ARB On-Board High Performance 12 Volt Twin Air Compressor ARB CKMTA12 The ARB Twin Air Heavy Duty Compressor is a life saver by delivering available air on tap whenever you need it. ARB One Gallon Air Tank ARB-171507 12.00 ARB One Gallon Air Tank ARB 171507
$ 178 2050-01-01
This air tank is to be used specifically with the ARB On-Board Air Compressors to improve their efficiency by giving more available air volume. ARB Twin Air Compressor Weld On Mounting Plate PPU-ARBCOMPMOUNT 5.00 ARB Twin Air Compressor Weld On Mounting Plate Power Products Unlimited PPU-ARBCOMPMOUNT Give your ARB compressor a home with this sturdy mounting system. ARB CKMA12KIT On-Board High Performance All-In-One 12 Volt Air Compressor Kit ARB-CKMA12KIT 28.00 ARB CKMA12KIT On-Board High Performance All-In-One 12 Volt Air Compressor Kit ARB CKMA12KIT This compressor can be used to activate air lockers, and perform other functions such as inflating camping gear or filling up your tires. This little pump has enough output to air up four 35" to 37" tires in a single duty cycle and will air up a 35" tire in just over two minutes. ARB CKMTA12KIT On-Board High Performance All-In-One 12 Volt Twin Air Compressor Kit ARB-CKMTA12KIT 40.00 ARB CKMTA12KIT On-Board High Performance All-In-One 12 Volt Twin Air Compressor Kit ARB CKMTA12KIT Want to know the most effective tool you can have in your truck? A permanently mounted air compressor to run air tools, air bags, and even fill up your tires. Yukon Master Overhaul Kit 11-19 GM / 11-18 Ram 11.5" YUK-YK_GM115-B 8.00 Yukon Master Overhaul Kit 11-19 GM / 11-18 Ram 11.5" Yukon Gear & Axle YK GM11.5-B Whether you're replacing your ring and pinion or it's just time for a rebuild, Yukon builds the BEST overhaul kits on the market, actually making your front or rear end STRONGER than stock! Yukon Bearing Install Kit 11-19 GM / 11-18 Ram 11.5" YUK-BK-GM11_5-B 8.00 Yukon Bearing Install Kit 11-19 GM / 11-18 Ram 11.5" Yukon Gear & Axle BK GM11.5-B Whether you're replacing your ring and pinion or it's just time for a rebuild, Yukon builds the BEST bearing kits on the market for your GM and Dodge 11.5, actually making your front or rear end STRONGER than stock!

The 2017-2019 Duramax equipped 2500HD and 3500 trucks feature an IFS (Independent Front Suspension) AAM 9.25" assembly up front and an AAM 11.8 out back. From the factory, these housings were typically stuffed with the popular 3.73 ratio, but also had other options, such as a 4.10 used primarily for heavier towing, in most cases.

Over the years, these assemblies have proven themselves relatively reliable on moderately used trucks running stock, or close to stock tire size and power output. For those of us that demand substantial power increases and larger tires, there is room for improvement to improve the reliability and performance that they can afford. One of the best upgrades we can recommend for anyone that has increased tire size, is that of a ring and pinion ratio upgrade. As previously stated, most of these trucks came factory with a 3.73 ratio, designed to have a proper run out with a stock size tire (roughly 32"). But as soon as you upgrade to a 37" or larger tire, all of a sudden your RPM vs. speed are effected, even causing a disruption of the shift pattern on automatic transmission equipped trucks.

Lets give the example of upgrading to a 37" tire. By using cross multiplication, we can determine that in order to have the same RPM vs. speed as with the factory tire size, you would want to install a 4.31 gear ratio (3.73/32*37). Unfortunately, in this scenario there is no such thing as a 4.31 ratio, but darn close would be a 4.30 that is readily available. Or, you can also opt to go with a slightly lower ratio of 4.56 that would give you a higher RPM vs. speed compared to stock, which is especially useful for those towing frequently.

Besides replacing the ring and pinion, we also offer numerous other upgrades, such as ARB Air Lockers, rebuild kits, and so much more. As always, if you have any questions about which product is right for you and your truck don't hesitate to give us a call or send us an e-mail to [email protected] and we would be happy to help.

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