NITRO D44 5.38 THICK Crownwheel & Pinion RR JEEP WRANGLER JK (DUAL DRILLED FOR 7/16 & 1/2 R/G BOLTS)
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Dana Spicer Model 44-JK, Rear
5.38 Nitro Thick Ring & Pinion
2007-2017 Jeep JK
|Differential:||Dana Model 44-JK|
|Ring Gear Bolts:||7/16", 10 (not included)|
|Manufacturer:||Nitro Gear & Axle|
JK gears are thicker than traditional Dana 44 gears and only work on 3.73 & Down carriers.
JK gears have larger ring gear bolts than traditional Dana 44 gears. Carrier ring gear bolt holes may need to be drilled larger.
Nitro gears are manufactured from 8620 steel gear forgings in the same manufacturing facilities as GM, Dodge, Ford & Toyota. They are precision machined using computer controlled processes, heat treated, CNC triple-lapped and Rockwell tested for hardness. These extra steps ensure excellent fitment, ideal contact pattern and smooth, quiet operation.