Best replacement rear O2 sensor?

I remember someone awhile ago saying something about a certain brand fron rockauto

 

NTK is OE and they're a lot cheaper off RockAuto

 

Literally the post before yours there's a chart. lol

Not so much the corporate ones here but it makes me sad every time I see a beaten and neglected XJ. So much rust!

 

Yep

 

thats the one!

 

Seriously. No one searches or googles lol

 

so I just got a 1996 Cherokee not too long ago as my first truck. My Dad and Grandpa were big Chevy guys but something about a jeep attracts me. On the Chevy topic my Grandpa has an old Small Block V8 motor he saved from one of his old racing trucks and we were wondering if it can fit in my Jeep? And also my Dad said he has heard bad things about the transmissions so he wanted to know if we could switch the transmission with any other transmission or does have to be a Jeep/Chrysler or can it be from any other jeep model? Please help thank you!

 

That all depends on your level of skill and the depth of your pockets. Small block V8s do fit in XJs if you know what you're doing. Cooling becomes the biggest factor

 

The aw4 is a solid transmission with care can last 300k+ miles easily. Is yours auto or standard. As for the swap. There are some Chevy engines that do for fit but there's others that will chime in. Also, is yours a 4.0? Give us some more info

 

Yes it is 4.0 and it is 4wd. The transmission slips a lot especially in reverse but it leaks a lot of the fluid the only time it doesnt slip is when we just put transmission fluid in. And my grandpa and dad have a lot of experience working on cars/trucks! So I know they can help a lot with the money.

 

There's your problem. The transmission isn't junk. Just needs to keep its fluid. And make sure you're putting dex/merc III back in her. Fix your leak and that transmission will last a long time.

 

Thank you im visiting my grandpa tomorrow to start adding to my Jeep so we will take a look at it thank you!

 

N8TheGr8, did you get a Cherokee XJ or a Grand Cherokee ZJ? The transmissions behind the 4.0L in ZJs are total trash. But in an XJ they'll last forever if they're kept cool and lubricated.

 

I changed my oil yesterday when I replaced the O rings on the filter adapter. I used the Rotella 5W40 T6 synthetic stuff. Did I do right ? I noticed a slight increase in il pressure, like maybe 7 or 8 PSI. Normal ?

 

Sort of. What filter did you spin on? Normally switching to a 5w synthetic from, say, a 10w conventional results in LOWER pressure on startup, but with a less restrictive filter media (or just one with a good bypass valve) you'll get a higher reading since there's more oil going through the filter.