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Recommended: 3 quarts of
Nitro Synthetic Plus Gear Lube
Custom 3rd Member Includes:9" HD 3.25" Alum Case NPDOF9-4-32535 Spline Full Spool FSF9-35-LWChoice of Street Gears or Pro Gears, Choose Ratio 1350 Forged Yoke YOKF900605Master Install Kit MKF9D-DAYProfessionally AssembledFord 9" HD 3.25" Nitro Spool Alum Dropout, with load bolt. Our aluminum cases are made from 356 T6 aluminum, our bearing caps are from one-piece billet, with a through bolt design and extra material is added to the bearing caps. This results in 50% less deflection that can occur with other units on the market.
The "through bolt" means that the differential bearing cap bolts are installed all the way through the differential housing itself. This makes it so that there is no chance of the bolts stripping out of the alum housing under punishing force.This Nitro Spool is the unit of choice for drag racing and hardcore off-road use. The no-frills design of the spool features no moving parts and provides 100% traction to both tires at all times. When traction & strength can not be compromised, Nitro's spools won't let you down. Precision manufactured from the highest quality materials, using state-of-the-art machining & heat treating process.
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.