RCV CV Front Axle Set for Dana 44 76-77 Bronco

Item #: 8890
RCV CV Front Axles are available in two materials that set the highest standards in strength. The 4340 steel is about twice as strong as the OEM axles while the 300M steel is 20% stronger than the 4340. The 300M Axles are made to order and require a 4 week lead time.

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Our RCV Dana 44 CV Front Axle Set are the Strongest Dana 44 Axles!!!


We know RCV products are the best. They do in house and third party testing to ensure that these products perform at the highest level. It is offered in two materials: 4340 and 300M.
The 4340 alloy steel is a heat treatable and low alloy steel containing chromium, nickel and molybdenum. It has high toughness and strength in the heat treated condition.
300M alloy steel is a vacuum melted low alloy steel with the inclusion of vanadium and a higher silicon composition. It has a very good fusion of toughness, fatigue strength and good resilience. Where fracture toughness and impact strength are crucial, 300M is a great choice. 300M material is about 20% stronger than the 4340 material.


On average, RCV CV axles are almost 2X as strong as the OEM axles!!


You might be wondering if you have to re-grease these RCV Performance cv joints. Yes, but only a couple times a year because they are packed with grease! Unlike, u-joints that you have to grease almost every time you go out!
The low maintenance aspect is what I like best about the RCV axles. I have run the best of the conventional u-joint style axles but they have all been high maintenance. Jim Creel


RCV product quality cannot be matched! RCV products are made with only the highest grade materials, they only buy U.S. steel. Better materials and workmanship comes with a higher price. You get what you pay for. When our customers open the box we want them to know that they got what they paid for.
Are cv joints more expensive than u joints? The RCV Ultimate CV Joints are actually less expensive than the highest end U-joints. Even though RCV CV-Joints are almost twice as strong as the best U-joint setup out there!


We encourage use of RCV products in daily drivers. They have done extenesive testing to make sure the CV axles can stand up to cross country road trips as well as hitting the trail hard. Try this with traditional highend U-joint setups, you will wear your joints out in no time!


If you have a warranty issue, call us. The warranty states, "You break it, we replace it!"

Specific 66-77 Bronco info

One thing that's different (aside from the obvious) about the RCV axles is the 30 spline outer axle. The 30 spline design adds approximately 30% more contact surface between the outer axle and hub making for a much stronger outer. This necessitates a locking hub change or you can opt for drive flanges (slugs).

Due to the larger diameter of the CV joint use the large opening knuckles like the 76-79 Ford disc brake knuckles. You will want to factor this in when doing a complete axle build.

WH does not recommend using these axles with the 71-75 Bronco steering knuckle.

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Rcv's on moab
May 23, 2011  |  By Earlybronco72
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I have only hammered my new axles for one long week in Moab, but I am very pleased so far. They worked flawlessly, and I was really impressed when traveling down the highway at speed with the hubs locked in, smooth as glass unlike with the old alloys.

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RCV CV Front Axle Set for Dana 44 76-77 Bronco
Item #: 8890