Blew BOTH CV Axles Out at the Same Time

[MUDLVR]

So BOTH CV axle's blew out at the same time. I was high centered in the front on a boulder, so both wheels were at full droop. I put the rear locker on and tried to back out but the ground was so soft that I was just digging a hole. Then I put it in drive and put the front locker on, which just made the wheels spin. As I was wiggling the steering wheel, I all of a sudden heard the load POP and immediately thought it was my steering rack. Luckily it was just the CV axles, and luckily I had a spare set at home! Coming from the Toyota IFS world, owning an FJ Cruiser and a 4Runner I knew instinctively to always have a spare set of CV axles.

BTW....I was running the stock sasquatch Bilstein's with a 3" spacer lift and Camburg UCA's when this all occurred.

I was able to get pulled up the steep loose dirt hill on the trail (since I didn't have 4WD any longer) and then when we got flat again I just drove home without any issues.

And when I got home I was coincidentally comforted with the delivery of my Radflo kit! So I started replacing the CV's and installed the Radflo's all at once. I got the driver's side all put together last night and will spend this evening and tomorrow doing the rest.

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[Hedrock]

Sucks about the CVs, I remember reading somewhere that they should have been slightly longer from the factory. Glad you made it out okay!

Opinion on the Radflos yet?

 

[cracKen]

Do you think it would be worth an upgrade to RCV axles that Jeepers often upgrade to? https://www.rcvperformance.com/axlesets/ford/ford-bronco-rcv-axle-set.html

So just the housing for it cracked? Since you drove home I'd assume it still spun the wheels on both sides right or is there a way to put the bronco in just rear wheel drive mode?

 

[akturbo]

Sucks that happened! I see you have a 3" lift, what's your plan to prevent this from happening again?

I think this is the 2nd time I've heard of CVs blowing at full droop, I don't recall how much lift the other one had. Sounds like we should never engage the front locker when we're full droop.

Edit: before I installed the 1.5" spacer up front I got hung up, was full droop, sounded terrible if I turned at all while locked. And that was stock!

 

[broadicustomworks]

Do you think it would be worth an upgrade to RCV axles that Jeepers often upgrade to? https://www.rcvperformance.com/axlesets/ford/ford-bronco-rcv-axle-set.html

So just the housing for it cracked? Since you drove home I'd assume it still spun the wheels on both sides right or is there a way to put the bronco in just rear wheel drive mode?

Yes, 2wd.

 

[BlueBronco]

FYI, another RadFlo user mounted his reservoirs similar to yours and was rubbing them on full lock. Not sure what wheel / tire combo he was running but something you may want to double check.

Edit. I am not sure his new mounting location is any better.

 

[VoltageDrop]

Sucks that happened! I see you have a 3" lift, what's your plan to prevent this from happening again?

I think this is the 2nd time I've heard of CVs blowing at full droop, I don't recall how much lift the other one had. Sounds like we should never engage the front locker when we're full droop.

Edit: before I installed the 1.5" spacer up front I got hung up, was full droop, sounded terrible if I turned at all while locked. And that was stock!

With that much lift I wonder if the balls are right at the edge of the bell at full droop. Maybe Broncbuster can whip up a CV bell brace? Only halfway joking... it might work if there's room to have something clamping the outer diameter.

 

[IDyeti]

That's some good carnage, what trail were you running?

 

[Snacktime]

Your on a 3" spacer on the front correct?

 

[CP650]

"Do you think it would be worth an upgrade to RCV axles that Jeepers often upgrade to? https://www.rcvperformance.com/axlesets/ford/ford-bronco-rcv-axle-set.html "

Coming from the Toyota family myself, Toyota guys still blow those RCV's too. Front lockers and CV's don't always get along well.

 

[broncoepic]

FYI, another RadFlo user mounted his reservoirs similar to yours and was rubbing them on full lock. Not sure what wheel / tire combo he was running but something you may want to double check.

Edit. I am not sure his new mounting location is any better.

I have the King adjustable coil-overs and had the external reservoirs mounted behind the front bumper similar to the Radflo. I've since relocated them to the rear of the vehicle tucked in behind the wheel well liner, similar to how Fox does their installation. I had no clearance issues with 35's w/ 0mm offset wheels. However, ran into an issue when upgrading to 37s. There is also the added risk of damage by rocks/obstacles at approach.

 

[noliveaxle]

F. Glad my wife took mine and is using it as a daily. Hopefully by the time she gets tired of the manual, they have real modifications to prevent this. MUDLVR, thanks for posting and good for you to be ready and expecting potential problems.

 

[sniffHound]

Is full droop when your rear supension is as high as it can go or the feeling we have since we’re not built yet?
The first part was a serious question.

Sucks that happened! I see you have a 3" lift, what's your plan to prevent this from happening again?

I think this is the 2nd time I've heard of CVs blowing at full droop, I don't recall how much lift the other one had. Sounds like we should never engage the front locker when we're full droop.

Edit: before I installed the 1.5" spacer up front I got hung up, was full droop, sounded terrible if I turned at all while locked. And that was stock!

 

[akturbo]

Is full droop when your rear supension is as high as it can go or the feeling we have since we’re not built yet?
The first part was a serious question.

Its when your front tires are hanging in the air, your suspension is fully extended.

 

[lapazleo]

Do you think it would be worth an upgrade to RCV axles that Jeepers often upgrade to? https://www.rcvperformance.com/axlesets/ford/ford-bronco-rcv-axle-set.html

So just the housing for it cracked? Since you drove home I'd assume it still spun the wheels on both sides right or is there a way to put the bronco in just rear wheel drive mode?

Put in it 2wd hi the Bronco is a rear wheel drive vehicle when not i n 4wd.

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