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Tech Note:Racing, Offroad, and hardcore Fits include Dragrace, Ultra4, Trophy Truck, Prerunner, Diesel Drag, Ect.
Use with large Journal full spool FSF9-40-2-25, Nitro 10" Grears, and MKF9BILLET-3-8 install kit.These
units use an oversize 3.812 carrier bearing bore allowing larger/thicker
bearing journals when installing a 40 spline spool. The pinion support uses 10
high strength studs and accepts larger 35 spline pro gear type pinions.
bearing caps feature US made high strength studs with inserts in the aluminum
main housing to locate and properly secure them. Supplied adjuster nuts are
heat treated billet as well.
specifically to enhance the longevity of race gears these 3
generation billet assemblies are engineered for maximum performance in extreme
Fits and look good at the same time.
Manufactured right here in the U.S. of A., these billet aluminum beauties are CNC machined from aircraft quality 6061-T6 solid billet aluminum. The bearing main caps are then CNC machined from 6061-T6 solid billet aluminum and matched to the housings. Not only does the aluminum add considerably to the overall strength of the 3rd member but at 20-30% less weight than a nodular iron drop-out.Engineered
to vastly increase rigidity of the pinion bearings these units reduce flex
resulting in better gear contact and strength under extreme loads. Further
stiffening is accomplished via a load bolt supporting the ring gear and maximum
internal webbing around the 3
Nitro's extreme engineering has produced features like a load bolt for increased resistance to pinion deflection.
Nitro Gear & Axle strives to provide the highest quality differential & axle components available. We take the steps necessary to ensure our parts are dependable. Our product range is continually growing to meet the needs of consumers for new ratios and Fits. At Nitro we know differentials, and know what it takes to provide you with high quality components.
This product can expose you to chemicals including toluene and benzene, which are known to the State of California to cause cancer and birth defects or other reproductive harm.
For more information go to: www.P65Warnings.ca.gov