Thought I posted this question, can't find it

Need to check the back diff in the parts rover, can't drive to listen

My thoughts jack up back

Remove tires

Compress brake pads

Remove drive shaft

Spin diff using impact gun or similar and listen for noise

I know the diff does not leak like our current one

Thoughts?

 

I wouldn't use an impact, for the risk of impacting and tightening while turning, but a high-torque drill or something would work.

Also, there is obviously the chance that it would only make noise under a load, or even just under decel, so this probably isn't a guarantee, but its a better check than just tossing it in to find out. If you're able to get it spinning up with the wheels still on the hubs, it might be more true of a test.

 

Thanks, I was also thinking drill vs impact

Just hope if its going to whine it will do it no matter what
This rear has no leak, so if quiet my next step would be drain fluid for condition

Back Rear in wife's leaks, whines/humms loud, fluid had moisture contamination

 

When you swap it, don't forget to check the breather for both flow and routing, I've even seen the rears just not connected at all.

As strange as it sounds though, I've seen these with fluid that looks fine(not fresh) and making all kinds of noise, and with pretty big mounds of metal build up on the drain plug that were dead quiet.

I would say a slow turn by hand of the pinion might help the most to see if any rough spots are felt in the bearing.

 

OK thanks, might not get to this for a while just trying to get a game plan together, the vents fine on the wife's, I am sort of hoping the doner is a replacement since that vehicle has super hi milage

 

Just thinking out loud but if everyone is guarunteed at least 1 bad diff some both how is there not a class action suit ?

 

I would imagine that there is not a lawsuit because 1) it's not a safety issue meaning there are no reported crashes because of it 2) the dealer is replacing them under warranty for the original owner/lessor 3) when we get them (the people that buys the 4-6 old trucks and keep them for another 10 years) we tend to fix them our self and the aftermarket has fixed the issue LR didn't catch.