Quick Ship SKU #: YUK-YA_C115-38-40-Main Yukon 38 Spline Axle Upgrade 03-12 Dodge Ram 2500 / 3500 AAM 11.5"

So, you're hard on your truck, we're okay with that, so are we! And that's why we recommend running the Yukon Gear & Axle 38 spline upgraded axle shafts and compatible Grizzly Locker. We've ran this setup in everything from sledpullers, to drag racers, to high speed off-road, and even to daily drivers, and it WILL NOT FAIL! This combination from Yukon Gear and Axle upgrades your current 30 spline to MASSIVE 38 spline axle shafts for your 2003 to 2012 Dodge with AAM 11.5" rear differential. This project requires you to upgrade the carrier to 38 spline Yukon Grizzly Locker on top of the axle. It will not work without the larger carrier.

38 spline upgraded cut to length axle for 10.5" & 11.5" Dodge rear. This cut to length axle will accommodate applications from 36.4" to 40.1". Yukon 1541H alloy axles offer a strength increase over stock while retaining a low cost. Yukon 1541H axles come with a one year warranty against manufacturing defects. This kit is also available in 4340 chromoly with a LIFETIME warranty!

11.5AAM , 38Spline , GM DODGE GRIZZLY LOCKER . The Yukon Grizzly Locker is a mechanical locking differential. It features a forged case and 8620 internals for maximum strength. It's patent pending design reduces common locker failures. All units assembled in the USA!

Installation
Yukon's 38 spline axles are larger diameter than stock, 1.625" in diameter to 1.550" diameter stock shafts. This upgrade requires boaring of spindles and a new 38 spline differential is needed to upgrade axles. This is not a bolt on kit. Please have a professional mechanic install it if you do not know what you are doing.