CV Axle Clunk

[honorableh]

After my last round of modifications including yukon 5.38 ring and pinion gears in front and rear axles and icon front upper and rear lower control arms plus an alignment with vehicle and slight increase in rear lift height to match the front.

A clunk has appeared that occurs with each tire rotation. It only shows up while under load and increases with more engine load and especially when climbing and front suspension extended.

My question for the knowledgeable group of Bronco6g is whats the best way to address this?

I've considered a few solutions of increasing cost:

1. Lower height of falcon 3.3 coilovers to bring CV angle down. Need to do this for climbing stability anyweigh. In a 2 door manual, so pretty lightweight even with winch.
2. Try to repair or replace stock existing CV.
3. Have diff inspected
4. Install Front diff drop kit
5. Upgrade to SPICER 29 spline CV axles
6. Replace m210 with spicer FDU and 32 spline CVs.

What else should I consider?

Sponsored

 

[Valhalla]

The RCV axles have mixed reviews.. There is that. You could do a long arm kit.

 

[SierraBronco]

As far as the current clunk I wonder if the CV was damaged when the install was being done. It’s pretty common that they are allowed to droop too far when components are being swapped out.

 

[Brian_B]

As far as the current clunk I wonder if the CV was damaged when the install was being done. It’s pretty common that they are allowed to droop too far when components are being swapped out.

This was my thought too - very common for a CV to get overextended when doing front end work, especially driver's side. It could probably be repaired - usually it's just the clip has come off, but it's a mess trying to dig in there, make sure you find the clip, re-clip, regrease, and get the boot back on right.. If it's stock m210 CVs though probably as cheap and easier to just replace the clunker - they aren't expensive (unless you do 32-spline or RCV, then they cost a fortune)

There's also the chance it's not a CV and the lash just didn't get set properly on the new gearing

 

[SierraBronco]

This was my thought too - very common for a CV to get overextended when doing front end work, especially driver's side. It could probably be repaired - usually it's just the clip has come off, but it's a mess trying to dig in there, make sure you find the clip, re-clip, regrease, and get the boot back on right.. If it's stock m210 CVs though probably as cheap and easier to just replace the clunker - they aren't expensive (unless you do 32-spline or RCV, then they cost a fortune)

There's also the chance it's not a CV and the lash just didn't get set properly on the new gearing

Really hope it’s the CV and not the ring and pinion

 

[honorableh]

I appreciate the responses, thank you for the input.

Hopefully swapping to new oem CV axles will be the only the fix. I will keep you posted

 

[Valhalla]

I appreciate the responses, thank you for the input.

Hopefully swapping to new oem CV axles will be the only the fix. I will keep you posted

If you don't disect the clunking one send it to me.

Sponsored