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Ultimate Dana Big Bell 40 Spline CV Axle w/300M shafts for Ford F-250/350 ('05+)
RCV Performance Ultimate CV Axles simply replace your Ford F-250/350's Dana 60 U-joint axle shafts with a high-strength constant velocity design. These Big Bell CVs are our 2.5 ton Rockwell CVs, but the outer stub is designed to fit directly to the large 32 spline 2005+ Ford Dana 60 Super Duty unit bearing. Eliminating the need for a lock-out or drive flange, increasing strength and reliability.
IMPORTANT:
CVJ60M-FORD4-40 requires modification to the OEM Ford 2005+ F250/F350 Super Duty knuckles. To clear, Ball Joint eliminator kit and minor clearancing/machining inside the knuckle is needed.
Please see our instruction guide here: https://www.rcvperformance.com/media/pdf/BIGBELL_OEMKNUCKLE_INSTALL.pdf
Fits:
2005+ Ford F250/F350 Super Duty with aftermarket 40 spline locker. Does not fit OEM 35 spline carrier.
CVJ60M-FORD4-40 kit includes 300M internal CV components, and 300M 40 spline inner shafts.
Ultimate CV Axles also eliminate U-joint binding to allow smooth transfer power to the ground.
Even if you have big tires and big power there are no worries.
Ultimate CV Axles are low maintenance and operate with a smoothness you can feel - whether off road or on the street. And they back it all with a "No Questions Asked" limited lifetime warranty.
Axle set includes:
Right and left CV axle shafts, SST seals, installation instructions, synthetic moly grease, and installation hardware. Black oxide coating is standard.
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