Difference between ax15 and nv3550. However, the ...

  • Difference between ax15 and nv3550. However, the AX-15 is often favored due to its lower price and greater availability of new units. The thread discusses swapping an AX-15 transmission for an NV3550 in a YJ Jeep Wrangler. The NSG370 does have the benifit of a noticably lower 1st gear though. Also, if you have a 2000-2002 with the NV3550, you should also be fine using any '03-06 case, since apparently in '03 and '04 Jeep mated the shorter 23-spline gear with the NV3550 transmission. Long story short, the NV3550 has a higher first gear ratio that makes it a bit better for offroading applications, while the AX15 is cheaper and easier to acquire. Of course now I found a nv3550 and tcase with 89 k miles on it for $500 out of an 02 Tj . Im planning on changing out my transmission in my 01 sport 4. That said, the AX-15 has available parts, while the rebuild kits for the NV3550 are all crap because the manufacturer is out of business. Direct Replacement Jeep YJ & TJ: The AX15 was used in Jeep vehicles used between 1988 to 1999, and the NV3550 between 2000 to 2004. No explanation exists for this difference. Feb 14, 2026 · NV3550 The NV3550 was introduced as a replacement for the AX15 in the year 2000 and was used until 2004 in various Jeep models. Dec 1, 2019 · Dimensional differences between the AX 15 and the NV 3550. The clutch forks are the same and interchangeable, as is the throwout bearing fit. yj's 92 and up, along with tj's have the same clocking pattern for the t-case. xj's will clock the t-case an inch or two lower (very bad). 83 2. The stock rotation on the New Process transfer case depends on the year of the vehicle and the stock Note that the AX15 can use the same transmission mount as the 3550, but uses different threads in the housing - Novak AX15 threads are 7/16x14. Basically, I'm asking how to visually tell the difference between an ax-15 and a 3550. 33 1. Can you guys help with some pros and cons ? Ease of conversion ? $$ ? Donor availability ? Placement of shifter ? Can I keep my stock T shifter? Thoughts ? The NV3550 isn't a bad transmission, it's just that it's much harder to come by, more expensive, and parts are harder to source. 5 without bellhousing) but slightly stronger too, and the gearing is a little (and I mean little) more fuel efficient with the nv3550 (nv3550: 4. I had a TJ with the NV3550 I currently have a Scrambler with either (i assume) an ax-15 or nv3550. Overall the 3550 is much stronger and reliable. Whether you’re switching to an What I have now is a NV3550 out of a 04 Wrangler. The main and little known difference between these two very similar transmissions is that the NVG1500 uses a different lubricant than the NV3550. What are the advantages / disadvantages of each trans ? I know that on both the If you're considering swapping your AX15 transmission for an NV3550, here's what you should know: The swap is relatively simple, with the main modification being the transfer case linkage. also, i dont think parts are readily availible for the nv if repairs are needed. Sold As-Is. Seems if I recall correctly there was some difference in the T/C clocking from an XY to TJ using the AX15 trans. Do yourself and swap in an AX-15 (as many in your same position have) and you'll be better off. The 3550 just giggles at the crap that blew out the AX15. Bell housing external slave upgrade kit for ax15 into 87-90 Jeep Wrangler, 86-90 Cherokee, or 86-90 Comanche. just curious in the differences in them. 00 . 01 2. Feb 17, 2017 · The NV3550 transmission is generally considered to have better casting quality and thicker gears than the AX-15. What advantage does the AX15 have over the NV3550. As far as I can read, the two are comparable in strength, the NV is a bit lower in 1st gear (no The NV3550 technically can accept slightly more torque. Am I missing something? Thanks Jun 9, 2021 · The NV3550 and AX15 are two very similar transmissions with only a few real differences between them. The NVG1500 requires a friction modifier where the NV3550 does not. It features a robust design with a torque capacity of 300 lb-ft, which makes it suitable for both daily driving and off-road applications. 79), but the nv3550 was only in jeeps from 2000-2004 so not very easy to In this episode of the LS TJ, 'Project 6. When it comes to fluid, the NV3550 can be sensitive; GL-4 oils like 75-90 may be too thick and cause lubrication issues Mar 5, 2009 · I don't think I'd ever use one but I got wind of a descent buy on a NV3550. What are the advantages / disadvantages of each trans ? I know that on both the . however, i have a couple friends that have newer tj,s with the nv, and they are noisy and randomly will pop out of gear. i have always heard/read that the nv3550 was a stronger trans. The NV3550 also has a higher (numerically lower) final gear, meaning you will turn lower revs in 5th with the NV3550 than you will in 6th with the NSG370. You’re more likely to find an AX15 in a junkyard if you’re looking for a new transmission. The 42RLE was adapted to the TJ by turning it longitudinally via a new case, and utilizing an empty extension housing to make it the same length as the NV3550 or NSG370. If you’re looking to make a change to your vehicle’s engine or transmission, you’ll need one of our engine to transmission adapter kits. 44 1. 0', we swap out the nv3550 transmission to the AX15. We don't have an AX15 to NV3550 thread in the FAQ ware of, you may be breaking some new ground, or ground that hasn't been widely published on this forum at least. The NV3550 bolts up to the bellhousing and transfer case. That should significantly increase your options for donor cases; and, the case you mentioned in the first post may be the only one you actually can't use. It is after all a heavy duty trans. So i guess my options are to rebuild my tranny (nv3550) or buy a new one. With these Jeeps getting up in mileage a new AX15 would be your direct replacements. I say "assume" because It doesn't look like a t-5 and I don't know what else it could be. One of the differences between the Dana 300 and New Process transfer case is the rotation. '98 TJ has been under the knife the last 30 months getting a new frame, torque boxes and fenders. Look thru the BA10/5 to AX15 thread, then compare the BA10/5 to NV3550 thread and take careful note which parts are common between these mods, and very likely you'll have your answers. 7" without bellhousing) is slightly longer than the ax15 (16. Just disregard my thinking/typing out loud The NV3550 is about 10% stronger than the NSG370, with a maximum torque input of 300 ft/bs vs 272 ft/lbs. I went through 2 AX15's before I got smart and through in a 3550. i have about 150000 miles on my ax and have had no problems. What are the differences between the flywheels from different years and different AMC/Jeep Inline Six Cylinders??? Which flywheels will interchange with which engines and what are the ramifications of each swap?? I recently purchased an external slave ax15 with 231 tcase out of a yj for a swap from a 2wd ba10 to convert my 89 mj to 4wd . The NV3550 is about 10% stronger than the NSG370, with a maximum torque input of 300 ft/bs vs 272 ft/lbs. 78) (ax15: 3. Can anyone tell me how to tell the difference between an AX-5 and an AX-15 from the outside of the tranny ? Is there a mark or characteristic on the Explore the Aisin-Warner AX15 transmission — detailed specs, identification tips, and adaptability for Jeep, GM, and Ford engines. Mostly deep sand and logs and other obsticals you will find on the beach. So my question is is the ax15 better, worse or equal to the What I have now is a NV3550 out of a 04 Wrangler. Well I am going to run one or the other behind the Ford 302 and I have found one of eachsame price, the AX15 would be used but re-built, the NV3550 would be used in good condition, no re-build. These kits, also known as bellhousing adapter kits, feature components that take advantage of your vehicle’s factory components to help you make a clean, efficient and safe installation of a new motor or transmission. The NV3550 and AX15 are both popular manual transmissions used in Jeep vehicles, primarily during the late 1990s and early 2000s. Some users have experienced issues with NV3550 rebuilds. My transmission has started grinding really bad downshifting from 3rd to 2nd and 2nd to 1st. This comparison will help enthusiasts understand the differences, advantages, and potential drawbacks of each transmission. Is that right? How can I tell the difference between an NV3500 and an NV3550? The NV3550 transmission is generally considered to have better casting quality and thicker gears than the AX-15. However, the NV3550 lacks the mounting point for the YJ's transfer case shifting linkage, requiring modification or an adapter bracket. When I was contemplating an auto to manual swap I looked a both options and the NV3550 seemed to have less issues overall. The Novak shifter is a long straight stick, so I went with the B&M Sport Shifter, which is designed for the TJ and uses the same knob threads. 4) New Process 231 General Information: The New Process transfer cases used in late model Jeeps were always a left-hand drop configuration and had the same circular bolt pattern as the Dana 300. 0 with the nv3550 and np231 transfer case and i was wondering what the difference between the ax15 and nv3550 are? After much reading and deliberation, I think I have narrowed the transmission swap down to 2 candidates AX15 or the NV3550. I can't tell a bit of differnce (at least in the pics). The output shaft of the NV 3550 has a rear stick-out of approx 1/8" Most sites say that it is flush with the rear of the case. Best I can figure, the NV3500 does not have a removable bell housing. Current item may be dirtier than pictured. I know you can change to an ax15 but can you go backwards and go to an ax5 from an ax15? What is the difference between a AX5 and a AX15 is there a something I should look for to tell the difference between them I'll try to clarify it. Bought a new Crown knob and Mopar shift pattern insert. Mar 15, 2014 · Location and fit of the CPS between both of these bellhousings are the same, the AX bellhousing will bolt to the NV 3550 without any need for clearancing, and the NV3550 will also bolt to the AX 15 bellhousing with the same 9 bolts--size, thread pitch and length. Another difference between the NV3550 and AX15 is the duration of production. Some may feel that this is a downgrade but it is quite the cont This is a complete set of 9 brand new bolts for attaching the bellhousing to the transmission on Jeep models using the AX5, AX15, or NV3550 manual transmissions. And today it started to grind shifting from 1st to second. I recently purchased an external slave ax15 with 231 tcase out of a yj for a swap from a 2wd ba10 to convert my 89 mj to 4wd . I was looking on the forum and google to try to find characteristics to help differntiate that tranny from the AX-15. What I need to know is will the 3550 with a 231 T/C out of an XJ a bolt-in or do I have to change some "clocking"? Thanks in Advance. Regardless of which transmission you can find, both are excellent choices, so you should be happy with whatever you choose. another difference is with the tail housing. Is the NV3550 anymore or any less of a transmission then the AX15? If you know the answers to any of these questions please pm me or write on this post, any info would help me thanks for your time! What are the main differences between the AX15 transmission and other manual transmissions like the NV3550 or TR-4050? The Aisin AX15 is considered a fine transmission for medium-duty on-road and off-road applications. The nv3550 (16. 39 1. pzt3w, fl67o0, w0g5e, 6hcg7, 0siv, 7epatn, upjiw, gltjcy, cabp, v7bar,