I want to install a Rubicon Six speed tranny in my 98 TJ. Is there a way to make the crank position sensor work from the different location on the six speed bell housing, or will I have to machine the bell housing and locate it in the same location it is now? Can anyone help with this?

Thanks  Ed

We're working on this swap now. The best thing to do at this point is to install the crank trigger in your tranny bellhousing and use the correct flywheel. It really only needs to be close to correct. 1/2 a degree or something really shouldn't make a difference. This is the best we got for now.  

Having already put the Jeep/Mercedes NSG-370 6 speed manual into two pre 2000 TJ's, I have some advice you may wish to read. All you need is to get the crank angle sensor re-location kit from a supplier like Advanced Adapters with the new harmonic balancer included. This kit will pickup from the front of the crank instead of the rear bell housing and mounts to the oil pan/timing cover bolts. It even comes with a wiring harness extension for your old crank angle sensor pigtail and includes a new plug to match. Make sure you have the backup lamp switch plug with pigtail wiring stubs included when you buy a used NSG-370. This way you can easily splice  into where the old backup switch plug was and it will plug in perfectly. One of the converted TJ's had a 3 speed automatic, the other had the AX-15 5 speed. You will need to modify the shift lever if you don't want it hitting the front of the center console or center stack bezel and your knuckles to impact the dash on forward shifts. This mod is easy to do. Just cut off the attachment sleeve from the stick at the weld where it slips over the trans shift "stub" and re-weld it on the back side instead of the front side where it's at in stock form. Hydraulic slave cylinder connections are the same as those on the AX-15's and NV-3550's so you're basically DONE! The NSG-370 drops right in behind the 4.0L with the original or 6 speed flywheel. The NP-231J or the NV-241OR "Rock-Track" Rubicon transfer cases will mate right to it. We had Nth Degree Mobility tummy tuckers with 1" raised motor mounts and the 5 speed rear trans mount bracket Nth Degree supplied for the AX-15 or NV-3550 fit the new 6 speed perfectly. It's nice to have a deep 4.46:1 1st gear combined with a 4:1 transfer case for crawling action. Another benefit is the extra ratio before going into 1:1, (where 4th gear used to be in the 5 speed box). Especially when pulling steep long grades in summertime heat. Noted positive changes: The engine runs much cooler and stays in its optimal power band. Now with big oversize tires on steep grades and when fully loaded for a week of camping/trail running, the jeep has improved midrange pulling power. The swap also helped boost our overall crawl ratio from 78:1 to an almost 90:1 with the lower 1st gear. The Jury may still be out on the long term durability of this transmission with big tires and hard trail use, but for us there were definite benefits in a 6 speed steed swap. Oh Yeah!  

I am now in the middle of this swap into my 97 tj, I have ordered the flywheel that came off the donor 05. I cut and extended my wiring so it will go to the new sensor. Am I on the right track?    

Never even thought about doing this... sounds like a cool swap. Thanks for the info Rick!  

I have a 2001 TJ with the 6 cyl. motor. Is the swap doable for my vehicle. If so, do I need to change flywheels and sensors and so on?  

Look two and three posts above yours, seems like they have answered your questions already.  

I have a 04-sport at/trans I want to swap out for the 6-speed manual.I am running 32" with 4:10 dana 44 rear.35 front.MIT drivetains in santee ca.says it should bolt up with out any fabfication. your thoughts?  

I think the computer will throw a code on you.

The other question is the location of the CPS sensor.  '03 and earlier had it mounted in roughly the 11 o'clock position as you looked at the back of the engine.  The 6-speed, its on the passenger side (maybe 2 o'clock?).  I am sure that if the sensor on yours is in that location, the computer will freak out with regards to timing, and again, throw a code.

But beyond that, yeah, if you are putting a 6-cylinder transmission on a 6-cylinder it should bolt up.  

My 2001 Wrangler Sport now has an NSG370 from a 2006 Rubicon. Goodbye Torqueflite 999 32RH and good riddance. I would like to thank the members of this forum for there priceless information in making this such a smooth transmission swap. However I have run into a problem that no one here has mentioned and hopefully someone can point me in the right direction. The Jeep will not start when I turn the key switch. Everything else works and the engine runs fine but I have to short across the starter solenoid to crank it. Any advice would be greatly appreciated.  

I have a 1992 wrangler with the 3 speed auto (32RH) and I would REALLY love to do the swap to the NSG370. Can you give me a parts list and maybe some advise. I would love to know just how hard and expensive this is before I get to far into it.  

check out the Steal J article in the July 2007 JP magazine, (The on with the new JT ripping up some sand on the cover), page 64, Mr. Hazel put in a gm 700R4 tranny. He has a parts list and contacts right there for us. Advance Adapter part number 716012 balancer/crank trigger kit---$248.40  

Is the length of the Nsg 370 the same as the Ax 15?  

id like to know if that trans would fit behind a ranger 4.0l and if you guys could tell me of a good place to get a bellhousing for my engine swap id appreciate that alot and engine mounts too  

try a pm to the web editor on the 4wheeloffroad.com he's a ranger fan. use the same login and password as the jp forum.