N62 Alternator Bracket Gasket

[svvg]

Hi - for those who’ve replaced it - did you also need to replace all the diff seals when you moved the diff and pulled out the driveshafts? I’ve read a few guides and some suggest this is necessary? Not sure how easy it will be to do the diff seals if it’s not being removed out of the car? Will it leak….?

Grateful for advice on this - looks like just need the alternator bracket seal and orings for the oil feeds.

[andrewwynn]

I've swapped a few CV axles never changed the seals no leaks up to 205,000 miles.

[Henn28]

Originally Posted by andrewwynn

I've swapped a few CV axles never changed the seals no leaks up to 205,000 miles.

Same. Just did a boot on the left axle and didn’t change the seal. No leaks (yet). Just be careful on the reinstall of the axle and you should be fine.

[svvg]

Thanks for the above - that’s good to know on the cv axle seals - what about the seal between the diff and the oil pan…?

[svvg]

Thanks for the above - that’s good to know on the cv axle seals - what about the seal between the diff and the oil pan…?

[Factory6speed]

Not sure about these v8s and alternator brackets, but, when I first picked up my x, it was leaking profusely from the oil pan and both of those little o-rings. It was hard to tell for certain if it was the o-rings or just the pan. The gear oil and engine oil were all mixed together.

I did the axles back in January. I had a fit getting the passenger one in, and messed up the seal. The axle seals weren't leaking but because I'm an idiot now the one was. So I ran the front diff leaking for about a month, it got low and fluid and started getting noisy. So now I've addressed that but I'm probably going to have to rebuild the diff.

Crack the fill plug of your diff. And if nothing comes out you probably want to replace those things soon. If you keep running it with a leak what's going to happen...

When you put the axles in you cannot touch the seal at all. If you put the opening in the c-clip at 12:00 it will push right in first try, very satisfying.

[svvg]

Thanks for the above!

[Henn28]

Originally Posted by svvg

Thanks for the above - that’s good to know on the cv axle seals - what about the seal between the diff and the oil pan…?

I’d put a new seal in there for sure. Cheap insurance. I know very little about the n62, but on the m62 it’s super easy to replace this seal. It’s extremely difficult though to pull the diff though if you don’t do it and it leaks.

[SocalD]

I just got done with this job on my 4.8IS. Replace the front diff seals for sure! You have to remove the drive shafts so why not? Cheap insurance if you are already that deep into a repair. I also replaced the o ring between the diff and the oil pan. Make sure to replace all the little o rings on the oil cooler lines as well.

[svvg]

Originally Posted by SocalD

I just got done with this job on my 4.8IS. Replace the front diff seals for sure! You have to remove the drive shafts so why not? Cheap insurance if you are already that deep into a repair. I also replaced the o ring between the diff and the oil pan. Make sure to replace all the little o rings on the oil cooler lines as well.

Thanks for this (and to all who’ve posted above) - so is there enough wiggle room to get to the seal between the diff and oil pan? Or did you have to take the diff out entirely?