Thread: Life of Puma Rear Diff's

Cue the crickets ... ... ... ... ... ... ... ... ...

Originally Posted by roley18

Our 2008 Puma is on it's 3rd rear diff, 42k on the clock.

The 3rd one has that 'dry running' sound when backing off at around 90kmhr, but heaps better than the first two.

Replacing it with the good gear from Ashcrofts would be great, but does that solve the problem ?

How hard is it to fit a diff . . . properly.

Hi all

So far my 2010 90 diff is ok..i think.

It does make that same "dry running" sound when backing off around 90kmh.

Is this something that will lead to bigger problems? Im nearly at the 20000km service so will wait to speak to LR then

Does anyone else experience this problem?

Cheers

Ando

2009 Defender, 53K on the clock, mostly hwy driving (unfortunately)
completely stock running gear

No Problems

Except for oil leaks which is another story.....

2009 Puma 67k. About to get my second set of half shafts under warranty - no noise from the diff just a fair bit of freeplay in the system.

Not really sure the shafts are the issue though - any thoughts?

2012, 110 and the diffs are fine after 2000k's
But the Turbo hose did come off after 139km, some limp wristed nancy didn't know how to tighten a hose clamp.

Originally Posted by isuzurover

Puma diffs are not fit for purpose IMHO.

For means of comparison, the diff in my 110 lasted ~350k km before I removed it when fitting a locked (disc-disc) axle.

funny, it worked fine in the p38 and behind the later model td5's...

perhaps its the antistall killing them because somethings got to give when the wheels dont want to turn any more and the engine wants them to.

2008 puma 23000km used mainly off road no problems

I just had a quick look at Ashcroft Transmissions. From what I can tell they only have stock 3.54 and an aftermarket 4.11 for the p38/late 110 rear. This diff seems to be more of a problem than the rover front.

Upgrading axles, flanges, cvs and carriers will all help to some degree, but the big problem is the small bearings, thin ring gear and short pinion. Which when added up with torque = defelction. Now add in a poorly set up diff and you dont have much chance.

Ashcroft did alude to a HD fix for these axles here on AULRO but no details where given.

Since they have had many R+P's made, I would have thought they be able to get a HD upgrade sorted. This may mean you have to run their carrier, but thats not a bad thing either.

I have stated before, and would like to know if the 3rd cast housing has the meat to have bigger carrier and pinion bearings fitted?