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Unread 12-01-2013, 02:12 PM   #31
mike_breaker_5
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Quote:
Originally Posted by JCashen View Post
Thank you, that is very good info. Is it possible to make the 5.9 internally balanced? I read that it is possible to use the 4.2 flywheel/clutch on the 5.2 since it is internally balanced.
i'm not so sure about using the I6 clutch setup on the v-8. as far as it fitting i don't know, i didn't try it.
my way of thinking is this...
if the I6 has a 9" clutch stock and the v-8 has an 10.5"-11" stock clutch (depending on what application) i would see the stock I6 clutch disk as VASTLY undersized for the v-8. having said this, there is also no way i would suggest using the I6 flywheel on the v-8. i doubt it will even be practical to try to get the back of the motor/bellhousing/clutch/starter/and all the rest to work together properly.

get a salvage fly, bell, and buy a clutch kit to match your flywheel/motor. this will save you a lot of headaches.

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http://www.jeepforum.com/forum/f22/m...r-junk-990191/
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Unread 12-02-2013, 03:10 PM   #32
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Quote:
Originally Posted by mike_breaker_5 View Post

i'm not so sure about using the I6 clutch setup on the v-8. as far as it fitting i don't know, i didn't try it.
my way of thinking is this...
if the I6 has a 9" clutch stock and the v-8 has an 10.5"-11" stock clutch (depending on what application) i would see the stock I6 clutch disk as VASTLY undersized for the v-8. having said this, there is also no way i would suggest using the I6 flywheel on the v-8. i doubt it will even be practical to try to get the back of the motor/bellhousing/clutch/starter/and all the rest to work together properly.

get a salvage fly, bell, and buy a clutch kit to match your flywheel/motor. this will save you a lot of headaches.
You can get the 5.2 flywheel machined to have the i6 clutch fit it I think Moparfreak69 did that on his..
I still haven't come to the conclusion on whether or not the truck starter will bolt to the v6 bellhousing?? Anyone know the answer to that? I'm probably just going to pick a used one up at a junkyard, since auto parts stores want a core charge anyway
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build thread: http://www.jeepforum.com/forum/f22/skyj-eccentric-build-1467426/ '90 YJ 5.2 magnum MPI, AX15, NP231 SYE, Dana 30 4.56 open/ 8.8 4.56 detriot locker. 1" shackles
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Unread 12-02-2013, 05:28 PM   #33
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this should help me one day in the future..
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Unread 12-03-2013, 01:06 AM   #34
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Quote:
Originally Posted by skyj View Post
You can get the 5.2 flywheel machined to have the i6 clutch fit it I think Moparfreak69 did that on his..
I still haven't come to the conclusion on whether or not the truck starter will bolt to the v6 bellhousing?? Anyone know the answer to that? I'm probably just going to pick a used one up at a junkyard, since auto parts stores want a core charge anyway
I'll most likely do the same once I start getting parts. I just had my ax15 rebuilt and put a new clutch kit on that's why I was curious. Is definitely be good info for the thread.
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Unread 12-04-2013, 12:01 AM   #35
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you can use a 5.2l clutch/pressure plate and still use your ax-15. get a clutch from a similar year dodge truck. the clutch disk will slip right onto the input of your ax15 and then the pressure plate will bolt directly to the flywheel.

http://www.rockauto.com/catalog/more...641&cc=1087714

why on earth would you go through all that trouble when the parts are available right off the shelf?
a clutch kit is just about $150 right? how much is a machine shop going to charge you to index a bunch of threaded holes in a circle around your flywheel? besides, like i said before, an I6 clutch is only like 9". you will slip the ever living crap out of that thing in low range if you get in a sticky situation. on top of all that you will tear through disks like they were made of paper.

early to mid 90's dodge trucks with the 5.2 and a manual trans used a 1.5"-11" clutch disk with a center spline that measured 1.125" with 10 splines, the exact same as the input as your ax-15. the 5.2 input bearing should even be able to be used if you have a stock yj trans and not one from a dakota or an xj. as long as the OD of the pilot shaft size is .750" it's a straight up match for the pilot bearing for the same dodge truck.

http://www.rockauto.com/catalog/more...751&cc=1087714

do not re-use your stock I6 clutch disk and pressure plate with a v-8. it's a waste of time and money.
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it's not much to look at... but it's mine.
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http://www.jeepforum.com/forum/f22/m...r-junk-990191/
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Unread 12-04-2013, 02:41 AM   #36
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Quote:
Originally Posted by mike_breaker_5 View Post
you can use a 5.2l clutch/pressure plate and still use your ax-15. get a clutch from a similar year dodge truck. the clutch disk will slip right onto the input of your ax15 and then the pressure plate will bolt directly to the flywheel.

http://www.rockauto.com/catalog/more...641&cc=1087714

why on earth would you go through all that trouble when the parts are available right off the shelf?
a clutch kit is just about $150 right? how much is a machine shop going to charge you to index a bunch of threaded holes in a circle around your flywheel? besides, like i said before, an I6 clutch is only like 9". you will slip the ever living crap out of that thing in low range if you get in a sticky situation. on top of all that you will tear through disks like they were made of paper.

early to mid 90's dodge trucks with the 5.2 and a manual trans used a 1.5"-11" clutch disk with a center spline that measured 1.125" with 10 splines, the exact same as the input as your ax-15. the 5.2 input bearing should even be able to be used if you have a stock yj trans and not one from a dakota or an xj. as long as the OD of the pilot shaft size is .750" it's a straight up match for the pilot bearing for the same dodge truck.

http://www.rockauto.com/catalog/more...751&cc=1087714

do not re-use your stock I6 clutch disk and pressure plate with a v-8. it's a waste of time and money.
I don't plan on reusing the 4.2 clutch/pressure plate, however this info is great for trying to make this a one stop shop for this swap. Its just a matter of organizing the information for people of lesser intelligence like myself.

I think I remember reading that the ax-15 came with 2 different size input shaft? If so does that create any challenge for finding the right pilot bearing?
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Unread 12-04-2013, 05:29 PM   #37
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the ax-15 does come with different pilot bearing sizes.

the dakota and XJ have a different pilot size. i am not certain if all dakotas have the odd sized input but i remember reading something about it when i was looking up a remedy for my situation

if you do end up with a goofy sized pilot shaft (one that isn't .750") you can do as i did... here's the post from my build thread...

Quote:
Originally Posted by mike_breaker_5 View Post
i also figured i's show yuns what i did to get the pilot situated.

first i took a stock magnum bearing like what rat had told me to look up from his 3500 swap. (stock photo)


then i took a stock bushing from a 91 xj with an ax-15.


then i pressed the bearing out of the center of the magnum pilot bearing, turned the id of the housing down to accept an extremely tight fit with the od of the xj bushing.


i turned the bushing down where it stuck through the larger housing so it didn't bund on the small pocket in the crank.


the result was exactly what the doctor ordered.
i made sure the brass bushing about .003" oversized to the bore i made on the silver piece in the pics. put the brass bushing in the freezer over night, used a mapp gas torch to give the silver piece a little heat, then tapped the bushing into the bushing housing. then after it was all acclimated i chucked up the whole assembly into the lathe and brought the diameter of the protruding bushing to an approximate OD of the stock pilot bearing for the motor. it has worked like a dream!
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it's not much to look at... but it's mine.
5.2lswap, metalcloaks, bedliner, tucked belly, d60's, soon to be nv4500 and d300.
http://www.jeepforum.com/forum/f22/m...r-junk-990191/
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Unread 12-05-2013, 12:37 PM   #38
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Originally Posted by mike_breaker_5 View Post
you can use a 5.2l clutch/pressure plate and still use your ax-15. get a clutch from a similar year dodge truck. the clutch disk will slip right onto the input of your ax15 and then the pressure plate will bolt directly to the flywheel.

do not re-use your stock I6 clutch disk and pressure plate with a v-8. it's a waste of time and money.
x2 on this. A 5.9 clutch fit inside the ax-15 just fine on my rig.
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Unread 12-15-2013, 09:10 PM   #39
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What VSS is everyone using? since my jeep is a '90 it does not have one. I found a brand new one on ebay its a SC108 which is what O'Reillys and auto zone say will work with a 92 wrangler. Its brand new only $25 on ebay but oreillys wants $82 for it the seller has a great rep/stars for sales so I'm not worried about them just the quality of the part. Or I could snag one off a Cherokee in the junkyard but I figured its a sensor I should get new.
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2" BL, 4" stretch all on saggy waggy springs.
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Unread 12-16-2013, 06:01 AM   #40
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i am using the stock one from my np231 in the HD dodge np231. from my understanding you can use the same stock VSS in the d300 x-case as well. this is my plan after i get the nv4500 in there, i have to buy one before i can put it in however.
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it's not much to look at... but it's mine.
5.2lswap, metalcloaks, bedliner, tucked belly, d60's, soon to be nv4500 and d300.
http://www.jeepforum.com/forum/f22/m...r-junk-990191/
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Unread 01-07-2014, 03:24 PM   #41
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One thing I completely overlooked is the CPS. I have the CPS from the Grand Cherokee but will that only work with an automatic or can I use it on a manual. I have the computer from the Dodge truck its an automatic will I need the CPS for a manual? Even though I'm using the computer from an automatic Dodge truck. Sheesh!! this thing is turning into Frankenstein. Auto parts stores have two different part numbers for the CPS but none can tell me the difference.
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build thread: http://www.jeepforum.com/forum/f22/skyj-eccentric-build-1467426/ '90 YJ 5.2 magnum MPI, AX15, NP231 SYE, Dana 30 4.56 open/ 8.8 4.56 detriot locker. 1" shackles
2" BL, 4" stretch all on saggy waggy springs.
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Unread 01-07-2014, 04:21 PM   #42
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i am fairly certain that the manual and automatic CPS' are different. the auto one is longer if memory serves and will contact the flywheel on the manual if used.
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it's not much to look at... but it's mine.
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http://www.jeepforum.com/forum/f22/m...r-junk-990191/
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Unread 01-07-2014, 05:18 PM   #43
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Originally Posted by mike_breaker_5 View Post
i am fairly certain that the manual and automatic CPS' are different. the auto one is longer if memory serves and will contact the flywheel on the manual if used.
Darn the manual cps is $95 maybe I could use washers as spacers to pull it up away from the flywheel. They got to be reading the same signal right?
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build thread: http://www.jeepforum.com/forum/f22/skyj-eccentric-build-1467426/ '90 YJ 5.2 magnum MPI, AX15, NP231 SYE, Dana 30 4.56 open/ 8.8 4.56 detriot locker. 1" shackles
2" BL, 4" stretch all on saggy waggy springs.
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Unread 01-07-2014, 07:52 PM   #44
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i would assume they are the same, i think i have have heard of people doing just as you have suggested. you may want to look into it and see if it will work. i honestly can't see why it wouldn't work.
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it's not much to look at... but it's mine.
5.2lswap, metalcloaks, bedliner, tucked belly, d60's, soon to be nv4500 and d300.
http://www.jeepforum.com/forum/f22/m...r-junk-990191/
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Unread 01-07-2014, 09:01 PM   #45
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Quote:
Originally Posted by mike_breaker_5 View Post
i am fairly certain that the manual and automatic CPS' are different. the auto one is longer if memory serves and will contact the flywheel on the manual if used.
when I did my hesco/junkyard MPFI i used an auto CPS they should read the same. the auto CPS is shaped like a "P" and the manual CPS is shaped like a "T". One mounting point vs two.
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