Thread: Rear diff issues

Get the pinion height correctly set and that will fix your problem,LR just replace the sloppy original with another sloppy original. Pat

My diff had done 50,000k's, including the Cape and Simo and lots of towing, without an issue. Even to the day it came out it still good as new.

I only replaced it because of the reputation of the P38.

You don't need a Force9, just the new HDP38.

IME a bent housing will most likely result in drive flanges working loose diff side gears and shafts wearing but no noise >proper set up with a solid pinion spacer correct pinion depth ,preload and backlash is a start.But as they say you cant make a silk purse out of a pigs ear

AM

I don't NEED a force 9 but I sure would like one.
I have half tried to explain to the service reps at land rover and I keep getting the "the mechanics do all of that like they're supposed too"
I'm pretty much only dealing with the service manager as he's the boss

Originally Posted by Danjeffery

I don't NEED a force 9 but I sure would like one.
I have half tried to explain to the service reps at land rover and I keep getting the "the mechanics do all of that like they're supposed too"
I'm pretty much only dealing with the service manager as he's the boss

Except the mechanics will be just taking the complete 3rd member from spares and installing as is. No checks on backlash or pattern I'm guessing.

Frustrating........

Originally Posted by rick130

Except the mechanics will be just taking the complete 3rd member from spares and installing as is. No checks on backlash or pattern I'm guessing.

Frustrating........

Very frustrating

I'd be asking for one of your old diff centers back and taking it to a diff specialist I know it's cost to you though. Then take that report to the service manager.

Other are right in that there is nothing wrong with the design of the diff (mines done 288, 000). But I think you need to find out what part of the diff is making the noise.

It could just be cheap carrier bearing that bed in deeply and create crown wheel lash and deflection.
Our (more likely) bad quality control around the crush tube that sets up the pinion pre-load. Any pinion oil leak could be a sign of this I suppose.

It shouldn't be you that is having to find this stuff out. Landrover do have procedures for this kind of thing - whereby the dealer sends the offending part back for inspection by their engineers. As it's pretty obvious no one there knows how to read a diff - maybe this is something you could ask about.

My 2003 TD5 (Which has the same rear diff as the PUMA) had 3 failed diffs before the last one which has done 230,000 without fault or noise. My 2009 PUMA had 3 replacement diffs, until the last one did 80,000 when I sold it. 2013 is still on it's original diff and that's only done 15,000 k.s The 6 diffs I've had failed - did so spectacularly, the first one chewed it's carrier bearings that was the only one that went very noisy.. The rest dropped cross shafts or spider gears which resulted in a god awful clunking.

Oh.. Actually I forgot - my 2013 has had a front diff fail, it lost a circlip and one of the cross shafts dropped out.

So I think it's luck of the draw as to how long they last.

But I'm not sure I care any more - I know there are better options out there - the Ashcroft is at the top of my list. So if or when my rear diff fails - upgrade time.