I have a LS swapped black XJ that currently has a 4L65E with a NP241C transfer case from an Escalade. I am going to take just the trans with TC out of it since the Jeep is setup more for drag racing and is 2wd and I am going to manual swap it with a TR6060 I have lying around. Before you flame me or question why a drag race Jeep, it is because I make poor life decisions and very bad with money. But I want to use that trans and a 5.3 I have lying around to LS swap my other blue XJ while keeping 4wd. I want to use it more for towing the black XJ and maybe my 16 Mustang to the tracks or taking the backwoods beataround Jeep to trails.. With trailer and Jeep it is right at the stock 5000lb tow rating, but LS swap the world!

But with those intentions, would I be better off with using the stock NP231 in the blue XJ currently or would I be better using the NP241C that is on the transmission going in? Is there some factor I am missing why one cannot be used, or something I am not thinking of? How I see it, the cost to do either at this point will be the same, $700 in the Novak conversion to use the NP231 on the 4L65E or $700 in drive shafts for using the NP241C.

I know very little about both transfer cases and looking at the individual specs I do not know what to look for comparison, especially with the idea of light towing in mind.

 

The 231 is off road use only. Snow, ice, mud, that sort of thing. Dry pavement is a no no. I dont know much about the 241, other than there was a 27 spline, and a 32, IIRC.

 

If your drag racing you can use 4x4 on the np231 since your going straight, just take it out of 4x4 before you make the turn at the end. An np241is the same way, but it is a little bit stronger. I would use whatever transfer case is easier, which sounds like it would be the 241since it's already bolted to the transmission.

 

I didn't think they put a manual shift 241 in an Escalade. I thought all of those were electronic controlled like the 149 (no low range) and 249 (with low range).

A 241C, regardless of what it came out of, will be stronger than the Jeep 231.

If I was running a GM transmission, I'd just keep the 241. There's no good reason to adapt the Jeep transfer case. It's likely you'll need to modify your drive shafts no matter what you do if you swap in a different drivetrain. It won't matter if you run the Jeep 231 or Chevy 241. It's going to land in a different spot than the factory position so the driveshafts will have to be modified.

 

That makes perfect sense. I was actually thinking about the 241 on an Escalade at work today, trans or transfercase must have been from something else.

 

I've only seen them on pickup trucks and usually just Chevy and GMC work trucks or other low option models.

That's not to say you can't get it on up level trims. I just don't recall having seen one.