DirtyComanche Posted June 19, 2009 Share Posted June 19, 2009 What is considered to be the maximum reliable amount of torque than an AX-15 can hold? I'm not talking one run, but actually having the thing last a while. I'm betting it's below 300ft-lbs... Link to comment Share on other sites More sharing options...
Pete M Posted June 19, 2009 Share Posted June 19, 2009 Got the budget for a nv3500? :brows: Link to comment Share on other sites More sharing options...
DirtyComanche Posted June 19, 2009 Author Share Posted June 19, 2009 Hmm. That's not a bad idea. They are rated for 300ft-lbs on the dot. And I could get one with a GM pattern, then use a SAE#3 or #4 (whatever) to GM adapter. The list of GM vehicles that I can pull one from isn't too bad either... Also, one wouldn't be nearly as expensive, nor as large, as a NV4500. Maybe all the little pieces will fall together... Link to comment Share on other sites More sharing options...
philbert001 Posted June 19, 2009 Share Posted June 19, 2009 I would be interested to know this too, as I have a 380 horse built 302 that I'm planning on strapping in the ole MJ. For me, It's not weather or not my AX-15 will last, but how long it will last before I have to upgrade to a full size driveline. I'm not wheeling mine or running big tires until I do blow it up/replace it, but after that, all bets are off! Link to comment Share on other sites More sharing options...
BWMJ Posted June 19, 2009 Share Posted June 19, 2009 I ran one behind a Ford small-block for about 40k miles. Never had a problem. Supposedly the AX-15 is almost as strong as the 3550. Link to comment Share on other sites More sharing options...
philbert001 Posted June 21, 2009 Share Posted June 21, 2009 I ran one behind a Ford small-block for about 40k miles. Never had a problem. Supposedly the AX-15 is almost as strong as the 3550. Good to know! Thanks bud! Link to comment Share on other sites More sharing options...
aemsee Posted June 21, 2009 Share Posted June 21, 2009 I ran one behind a Ford small-block for about 40k miles. Never had a problem. Supposedly the AX-15 is almost as strong as the 3550. I think I might put my money on a AX15 over the 3550. Link to comment Share on other sites More sharing options...
Sir Sam Posted June 27, 2009 Share Posted June 27, 2009 The Jeep NV3550 is used behind the VM 2.5 CRD in the KJ. The engine torque output is ~270 ft-lbs. Thats factory. If Jeep engineers threw the NV3550 behind a diesel engine with 270 ft-lbs at whatever low RPM it tops out at and expected it to last any length of time I suspect it will be fine running ~275-280. Also, if you need to clock the transfer case differently on the trans you can redrill the trans, that way you don't loose any spline engagement with the spacer/clocker. Apparently you posted this both on naxja and here. :waving: Link to comment Share on other sites More sharing options...
DirtyComanche Posted June 27, 2009 Author Share Posted June 27, 2009 One of my few posts on NAXJA in a long time... I need a 3/4" spacer regardless, if I just wanted a clocking ring I could get a 3/8" one. The input on the NP241D is a deep/long 23 spline deal. Unless I swapped input gears on it, or cut the input down (either might be viable, but there is issues with both) it would bottom on the output shaft of the trans before things mated up. I'd decided that I'd simply buy the clocking ring and then I could at least play around with the position of the case to a certain degree. Ultimately, it might be a smarter idea to put some new holes in the transmission, but I'm still undecided. This swap would be a little weird regardless. And probably ridiculously expensive once everything was in place... Cummins B3.3 (I don't like how the 4BT would have to fit), plus a 5-speed since I've half convinced myself that it is a better idea than an automatic for what I intend to do. It'll be expensive since used B3.3s are NOT easily had, so I'd probably be buying a new/rebuilt (crate) one either from Cummins or a rebuilder. Plus I'd need everything to go with it (turbo, injector pump, figure out the power steering and alternator mount, etc), and the SAE adapter for it. I think it could come out swell. Maybe I'm silly/stupid. But there is a member on here with one in his MJ, and I think he used an AX-15. Works for him, but I don't recall if he played with his pump settings... Link to comment Share on other sites More sharing options...
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