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XJ Ask the Question Thread
Member
Joined: Jul 2010
Posts: 103
Likes: 0
From: Georgia
Year: 1988
Model: Cherokee
Engine: 4.0L HO from a 91 Comanche.
When I bought my jeep it had four bad rod bearings, knocked like the world's end was nigh, then oil circulated and it was quiet until you revved it, and it clattered coming back down,so to keep it quiet and running until I has some cash I did something desperate, I put a mechanical fuel pressure gauge on it and it read 4-5 psi at idle once hot, and the knock showed up bad warm, given that I had some bearing tolerances to work with I picked something thick to make a more coagulated pressure reading, I said to heck with brand names and reason, I filled it up with super tech 85-140, made it much smoother and quieter.
::CF Moderator::
Joined: Aug 2011
Posts: 43,971
Likes: 1,578
From: Prescott, Az
Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
Member
Joined: Jul 2010
Posts: 103
Likes: 0
From: Georgia
Year: 1988
Model: Cherokee
Engine: 4.0L HO from a 91 Comanche.
I put about 10k on it before I went to pull a part and ripped the engine out of a 91 Comanche and rebuilt it, so I really have no idea, but the gear oil did get broken down to a pretty soupyviscosity by 2-3k miles
In anticipation of warmer weather, I'm preparing a shopping list. My xj is leaking like a sieve (diffs, oil pan, valve cover, trans, main seal, etc.) so its time to replace all the seals and give a good flush.
Anyway, my questions is, does anyone have a part number for the pinion seal for the front diff? If anyone knows, I'd like to get it from Advance since they're near by.
98 sport I believe is a dana 30? However, all their descriptions are for dana 35s. Thanks for the help!
Anyway, my questions is, does anyone have a part number for the pinion seal for the front diff? If anyone knows, I'd like to get it from Advance since they're near by.
98 sport I believe is a dana 30? However, all their descriptions are for dana 35s. Thanks for the help!
Moderator of Jeeps
Joined: Jul 2011
Posts: 21,029
Likes: 3
From: Frederick, MD from Cleveland, OH
Year: 1993 YJ Wrangler
Engine: 4.0 I6
In anticipation of warmer weather, I'm preparing a shopping list. My xj is leaking like a sieve (diffs, oil pan, valve cover, trans, main seal, etc.) so its time to replace all the seals and give a good flush.
Anyway, my questions is, does anyone have a part number for the pinion seal for the front diff? If anyone knows, I'd like to get it from Advance since they're near by.
98 sport I believe is a dana 30? However, all their descriptions are for dana 35s. Thanks for the help!
Anyway, my questions is, does anyone have a part number for the pinion seal for the front diff? If anyone knows, I'd like to get it from Advance since they're near by.
98 sport I believe is a dana 30? However, all their descriptions are for dana 35s. Thanks for the help!
http://www.jeepforum.com/forum/f9/pi...-30-a-1031177/
He gives NAPA p/n 15525 for the seal, but there is a chance yours could be different.
No, I don't lick fish.



Joined: Mar 2011
Posts: 11,169
Likes: 26
From: Northern Kentucky
Year: 1999
Model: Cherokee (XJ)
Engine: 4.0
Hey! Someone paid attention!
Yes there are more options than Rotella.
This brings up a good point: you can increase your engine's HP by adding HP Sauce to the oil and fuel. I have no idea why it isn't carried in the parts stores. It isn't tested by any recognizable automotive authority so it's basically the same as SeaFoam, Lucas, STP, and Slick50.
Yes there are more options than Rotella.This brings up a good point: you can increase your engine's HP by adding HP Sauce to the oil and fuel. I have no idea why it isn't carried in the parts stores. It isn't tested by any recognizable automotive authority so it's basically the same as SeaFoam, Lucas, STP, and Slick50.
Seasoned Member


Joined: Oct 2012
Posts: 328
Likes: 5
From: Dominican Republic
Year: 1990
Model: Cherokee
Engine: inline 6
Seasoned Member


Joined: Oct 2012
Posts: 328
Likes: 5
From: Dominican Republic
Year: 1990
Model: Cherokee
Engine: inline 6





how would you ever know