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Cody lives in Prescott Valley, AZ and has been running 410 gears with 38.7" Michelin XML tires. Time for a re-gear and 529 was the only choice with that tire. An ARB would be added with a solid collar. |
Nitro Gear....I happen to know that Carl from JustDifferentials.com was personally involved in the R&D of these gears and it's their premium line. |
Markings on the ring... |
NG = Nitro Gear |
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ARB RD124 |
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The master kit as supplied from Nitro Gear and Axle. |
Adapter carrier bearings with the 50mm inside diameter. |
The 3rd is torn down.... |
In the process of removing the old races with a soft chisel, I left some little dents. This is leveled flat using my thumb file. |
The pinion is installed without a solid collar or crush sleeve. The nut is tightened carefully until about 10 inch/pounds is measured. |
Surfaces are lightly filed to check for high spots. |
The ring was a tight fit onto the ARB case but the press made easy work of it. |
Red Loctite and about 100 ft/lbs makes it right. |
While trying to dial in the backlash, I found that the ring tooth was making contact with the carrier. This doesn't happen with all 529 gears but it did happen with this one. |
The contact is "strong" and the fix is an easy one. |
Using the handgrinder, remove a minimal amount of material....maybe .080" deep or so is more than enough. |
2 spots on the carrier need to be clearanced like this. |
Lots of clearance on this side... |
180 degrees away it clears fine also. |
Now that the ring gear will turn smoothly, now the backlash can be set to about .007 for a pattern check. |
Beautiful pattern. Depth is exact. |
The metal to metal "scuffing" that shows the same drive pattern. |
Coast looks good also. |
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Drive side on the pinion tooth looks nice. |
Coast is good. There's nothing wrong with these Nitro Gears...the quality is there. |
The fitting for the ARB hose is drilled and tapped at this point. |
With the pinion depth established, now the solid collar can be installed. It took me about 6 times to get the shim right for the collar. |
Finally, the seal is prepped with RTV and thick red grease. |
12 inch/pounds is measured for PPL. |
The adjusters are carefully tightened until the CBPL reaches 150 ft/lb or even a bit more. |
The seal assembly is pushed in place. The clip is snapped in place. |
Verify that the tab does not contact or push down on the seal assembly. Air leaks could possibly happen if it does. |
Carefully route the soft copper line with a service loop. |
The fat little o-ring is lubed up and carefully pushed in. |
Leak tested and all is good. |
Specs are dremel drilled on the ring... |
These are the notes I took....here, it took me 6 times to get the PPL right. |
The backlash was checked on every other tooth (about 19 places). |
Done....Check out the link below for the front gear install. ZUK |
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