Nissan Nut

The locker found in the rear of the D40,N50,A60 is made by GKN for Dana. The Dana M226 axle (formerly called Super 44) is in all these Nissans and not sure what else. Dana called it the Super Dana 44 back in the 90s. The locker is an electric locker that has spiders gears for unlocked differential action. Unfortunately these strip the spiders when wheeled hard.

Can not find replacement spiders. Nissan Dealers do not list this locker. Its not in FSM. I could not find parts or pictures in FAST or FSM. It is like this locker does not exist. So most people trash this lockers and put in a ARB, Spartan or down grade to LSD like True tracs. I talked to GKN and they stated the locker is only available to Nissan dealers as a unit. No parts exist. So we upgraded to a Spartan locker. You need an open carrier for this lunchbox style locker. The carrier and spiders is available at any dealer put picked up a used one for $50 from a 32 spline Titan. Some people pull the open carrier in favor of LSD. The d40 and n50 have different length axles on each side compared to the open m226. So a shorter Right side axle is needed. The Titan also has 3 sizes. Since it only has one axle for both sides if open. And only one new part number if locked. But the Titan only used the 32 spline for 04-07. Then they went 35spline in 2008.

First remove the ring gear. Then there is 2 Screws that hold the carrier together.

The spiders strip. Again not hardedned? Never seen this before. I have shattered lots of spiders.

Found this is an old Dana service guide dated 7/2000. Nissan did not use the M226 until 2004 in the Titan A60 and 2005 D40 and N50. Dana renamed all the models from 44 to M216 etc. Basically the metric ring gear size.

AXLE MODELS
NEW MODEL NUMBER     OLD MODEL NUMBER
174             28
181             30
186    Super 30
194             35
198    Super 35
200             36
216             44
226    Super 44
229             50
248             60
267             70
286             80

Its similar to the popular Lock Right locker by powertraxx.

Here is the axle stripped down. Its not the typical backing plate.

We put in some 4.10s to handle the 38x14.5s. Stock on the d40 is 3.3 axle code CC.

Here is the comparison of the gear sets.

Note the crush sleeve is different. The crush sleeves needs 400lb foot pounds to compress. After snapping breaker bars we used the press to collapse the crush sleeve

The axle shafts are all different lengths on the M226 LOCKED M226 and same length on the OPEN. So you have to replace the right axle. Its about 1/2 inch too long. The OPEN locker has the carrier in the center,EDL is off to the side.

Part numbers for D40 and N50 2005-2010 - Not sure if same on 2011
Locker version of M226
38164-EB000- right $223
38165-EB000- left

open version l and r
38164-EA010 left and right $336

The A60 (Titan 2004-2007 ONLY)
Same right and left open
same right and only left is different length on locked.

The axle seals and bearings are the same on all 3 vehicles. Only the backing plates and tone rings differ from auto to manual and vehicle to vehicle.