Alright....


Tested the XJ out yesterday after replacing the freeze-plugs and both O2 sensors. Engine didn't overheat and check engine light remained off - I guess I'm making progress (patting my own back...). Drove XJ around block twice - all okay.


Sounded like I might have a little bit of pinion noise when releasing the throttle - XJ has 183,000 miles on it. Back to the garage; jack the back end up... diffy gasket has been leaking a little - need to replace that.... so.....what kind of Autozone or Napa grease should I get to refill it with? The pumpkin WAS a shade low when I pulled the plug and checked the pumpkin.....maybe when I fill it properly it will quiet down. I guess it's either pinion slop or planetary gears in the automatic transmission....


What's your suggestion?...
Thanks,
Mark

 

Two options:

Short term, cheapest 75w90 you can find (usually supertech at Walmart)

Long term, Amsoil severe gear 75w90 without question
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I rock Supertech because I change diff fluid every 20k miles

 

I spend the extra bux and use SuperTech synthetic blend. Some WallyWorlds have better selections of lubes than others.

If it's whining now, the damage is done. Drain/fill is all you can do. Jeeps are supposed to be noisy anyways.

 

Thanks Discman and Investinwaffles....

I have to drain what's in it now to replace the leaking gasket - has a rubber plug for the filler cap is that a 10 bolt Dana 35?

Is it safe to fill the pumpkin back up with the Amsoil Synthetic oil or should I get a non-synthetic oil for the diffy?....

Headed to O'reily's and Autozone on Monday looking for the oil and gasket...

Thanks,
Mark

 

Do you have a towing package?

 

Angus1jp - The Cherokee did not come with a towing package, but I'll be adding a hitch to it soon for my 8X10 trailer to haul organs around in...

 

Someone correct me if I'm wrong, but i think if it has the rubber fill plug it is most likely an 8.25. That's what I have at least

 

Nardey11 - right... mine is the pumpkin in the upper left corner - rubber plug - okay to put synthetic oil back in it or is that all there is?...

 

I used Mobil 1 synthetic 75w-90, if you live in a cooler climate you definitely want to use synthetic because it doesn't thicken up as much as dino oil. You just fill until it starts running out of the hole then plug it quick.

 

Thanks very much Nardey11 for that quick reply. Live in Georgia, so it's a little warmer here than New York - will be 71 degrees this weekend. Sounds like great weather for dropping the cover - will add Mobile 1 Synthetic from Orielly's and do a new rubber plug while I'm at it.

Enjoy the cold weather up there,
Mark

 

I have a Dana 35 on my 01 and it has a rubber plug in it that says Dana...its a smaller hole than the 8.25 hole...my 92 had the 8.25.. with the rubber plug...In the 92 that now has almost 350k on the original rears I ran any decent 95/140 mixed 50/50 with lucas stabilizer and it has held up well with no issues...I ran Royal Purple HD synthetic in it once and they whinned so bad I took it out within a day or so