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Another Broken Axle / CV Joint

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rrknapp

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I hope you get the repair warrantied, but you will have to explain how your driveshaft angles aren’t changed. Makes no sense to my addled brain (unless you dropped the diff with spacers). There is a reason Ford and Jeep (and GM?) have not offered bigger than 33” tires and the Dana 30 and equivalent 190 Ford IFS axle. They aren’t built for the tire, weight, additional offset and definitely not a lot of wiggle room, capacity wise with a lift. So many 35” tires Jeeps with bent axles!
As all of you know, there are many ways to make a vehicle taller. Bigger Tires, Body Lift, Coil-over spacer, the deluxe, most expensive is to drop the driveline. This method changes the CV angle and needs correction. For all but the driveline drop, CV and steering link angles will be exactly the same at the new ride height. That said, at full drop on a trail, the tire will drop 2" further and will change the angle. (assuming nothing else is limiting the drop, such as stops on the upper control arm, as is the case with GM 3/4 ton)
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MayhemMike

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Of course one could have removed the aftermarket lift and put the original tires back on , and then had it towed to the dealership. I don’t know what the cost for the Sasquatch pa Kate don’t the BB is off hand, but there now is $1100 towards it, if Ford won’t cover the failure under warranty. Good luck.
 

SVTLightning

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Clubs
 
As all of you know, there are many ways to make a vehicle taller. Bigger Tires, Body Lift, Coil-over spacer, the deluxe, most expensive is to drop the driveline. This method changes the CV angle and needs correction. For all but the driveline drop, CV and steering link angles will be exactly the same at the new ride height. That said, at full drop on a trail, the tire will drop 2" further and will change the angle. (assuming nothing else is limiting the drop, such as stops on the upper control arm, as is the case with GM 3/4 ton)
This sounds backwards. Dropping the front diff and installing a taller knuckle will maintain cv angle will it not? How will your driveline angle not be changed by lifting?
 

Mattwings

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As all of you know, there are many ways to make a vehicle taller. Bigger Tires, Body Lift, Coil-over spacer, the deluxe, most expensive is to drop the driveline. This method changes the CV angle and needs correction. For all but the driveline drop, CV and steering link angles will be exactly the same at the new ride height. That said, at full drop on a trail, the tire will drop 2" further and will change the angle. (assuming nothing else is limiting the drop, such as stops on the upper control arm, as is the case with GM 3/4 ton)
I would like to see an illustration as to how the suspension and driveline angles stay the same on an IFS with spacer lift or coil overs. I am not saying your wrong, just can't figure it out in my mind or find anything that supports that view. It also seems to me that if you do not have a limiting strap, you have to either loose travel (Toyota IFS comes to mind) or extend down travel by about the same amount as your spacer. I did follow the Stage 3 Motorsports Ranger project, which is very similar to the current Bronco suspension. They didn't report problems with CV axles, but it changed the driveline and suspension angles (Fox 2.5s with 3" of lift I think was the final setting they went with, after using a spacer lift in version 1, or something like that ?)

I did find this short explainer that was pretty interesting.

https://www.superiorengineering.com.au/image/data/pdf files/ifs-lifts-done-right.pdf
 

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DrSquatch

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guys. dont worry... he clearly stated, "I am very seasoned 4wd guy." He's GOT THIS.
 

Bronco cat

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This. I just saw yesterday that someone posted a thread where they were having drivetrain issues and Ford won't warranty it because they have a leveling lift on it.

I was considering upgrading my tires on my OBX to 33s but Im concerned they'd even use that as an excuse to deny warranty even though my dealer was happy to install some and it's not much increase. If warranty is a concern, definitely best to stay OE.
33 come on the stock axle setup you are fine.
 

Blaven

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I'm not expert on lifts and geometry, but I do know that when you lift a vehicle, more is involved that just putting spacers or new coilovers on and then sending it out on the road. Good luck with the warranty.
 

AZ_BRONC

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If you couldn’t get a Bronco out of gravel driveway hole, it was broke before you started trying. And this is why I went SAS from the get-go. Warranties for 35’s. I’ll likely do the same with the Ford Performance tune. It’s a $50k+, very capable warrantied vehicle out the door. It becomes a toy once the warranty is up and it has 70k miles on it. Patience is a virtue.

Good luck though, I’ve seen some crazy stuff fixed on manufacturer’s dimes after non-factory mods.
 

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JonathanDuong

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I also broke front passenger axle at the CV joint. Big Bend. 35inch tires, 2 inch Rough Country lift. I was in my driveway on a course gravel parking pad. I was backing up, passenger rear wheel spun. Thought, perfect time to try 4W options. I wanted to crawl out of hole, so did not use much pedal. I could not get out of the hole under any 4w modes. Gas'ed it and spun out. Gave the keys back to my wife (her ride) and said, your 4wd sucks. I am very seasoned 4wd guy. The next day she calls me on the way home from work and said there is a noise coming from the front end. Looked at the axle and boot twisted. Yes broken axle. Towed to dealership 5 days ago and still don't think they pulled it into the shop. I know it's broken, service dept wont know until they actually put eye on it. Today, I called parts dept to make sure they had new axle in stock, if not I would order. I was told that there are 8 axles on back order and should be at the parts hub on 1/14. That is all I know to date 1/10/22. Lots of posting here and didn't get through them all. I think there were two other reports of broken axles. Did I miss any. Picture: x represents rear tire and 0 the front. i filled in the divot for rear but realize after the front wheel barely spun if any at all.

Update: Dealership short staffed, another Week+ to get it pulled into the shop. Ford agreed to tow it to another dealership today, 1/13. They called my wife to tell her Rough Country lift had changed the geometry and it will happen again. Here we go!!!........ trying to explain that geometry hasn't changed and the 2 inch spacers are a cheaper way to achieve the same lift as the stock 2 inch longer coil-overs. They will get back to me regarding warranty. I said fix it and I'll fight warranty later. The estimate for changing 1 CV axle is $1,100. Let's see where this ends up.

Any predictions?
Maybe, just maybe, they do the right thing. Although the tech knows nothing about lift geometry, he does admit Ford intended this vehicle to be modified. To be continued............

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Check your State laws. Warranty work through a dealership is a must and covered, UNLESS THEY CAN PROVE that your modifications are why it is not working.

I ran a 6" BDS Coilover Kit in my 2017 Silverado. They tried to say because of my lift I was having a transmission problem. Long story short, California (for once) helped me and they fixed the issue. Long story even shorter; GM has multiple lawsuits about the transmission now.
 

Jr87mustang

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going to be a lot of people that think doing this is going to be fixed under warranty.
Yup. Tons of people that wanted to either save money by not buying Sasquatch or were too impatient to wait in line for it, but wanted the look. Going out and immediately spending $3k-4k on new tires, rims, and a crappy spacer lift kit doesn't make it a Sas. Lots of broken M190 front axles coming.

The "Lift Me Baby" reference under the wheel wells wasn't in reference to a $50 Rough Country lift or perch collars. It was referring to Fox/King/Billstien coil overs and corrected control arm geometry....aka a proper lift that would cost more than getting Sas Package in the first place.
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