Jump to content
Pete M

Looking for driveshaft lengths of stock trucks

Recommended Posts

or 2.8?

 

AW-4 was never behind the 2.8

 

@ ax15 behind a 2.5 from factory, disputed

 

AX-15 was never behind the 2.5 in a Jeep. That was a Dakota thing.

Share this post


Link to post
Share on other sites

weve established that it doesnt seem to be stock

or 2.8?

 

AW-4 was never behind the 2.8

 

@ ax15 behind a 2.5 from factory, disputed

 

AX-15 was never behind the 2.5 in a Jeep. That was a Dakota thing.

Share this post


Link to post
Share on other sites

updated chart....the transfer will skew

 

comanche rear drive shaft lengths-eye to eye

 

lwb, 4.0, aw4, np231, d44= 48" d35= 49"

 

I just went out to measure my old stock shaft, and measure 48.25" center to center on the eyes.

 

1987 lwb, 4.0, aw4, np231, d35.

(production date of 11/86)

Share this post


Link to post
Share on other sites

you can put all 2.5/2.8 stuff together.

 

 

ALL 2.8/2.5 shafts will match each other provided the transmission, rear axle, and wheel base are also matching.

 

 

also, are your 2.5 liter shaft lengths 2wd or 4wd? you don't have a t-case listed with them, so I assume 2.5..however some may not.

 

also, ax4 and ax5's are literally the same transmission, so you can "lot" those together as well to save space on the list.

 

 

I will have measurements for lwb 2.8/2.5, , ax4/ax5, np207, 4x4, d35 by tomorrow if I remember...I have like 5 of those shafts just laying around...

Share this post


Link to post
Share on other sites
Add to the confusion some more. Getting a little annoyed at being doubted by my claim of a AX15 in my '89 with 2.5 I went out and checked. First moved the truck to get it out of the snow. Second raised it up high enough to get under it. Checked the manual to determine a sure fire way to ID a AX5-15. Crawled under truck.cold water immediately began dripping down my neck. Measured gearbox. 16 1/2 inches. End of fact finding tour.Scrapeing grease off surrounding area revealed a 3/4 inch (approximate) aluminum plate between tran and bell housing. Does not look original. To cold to do any more came into house and warmed up. As soon as I get the CJ3 I'm working on out of the garage the MJ is going in for further analysis to confirm a growing suspicion. Jim By the way, have 5 MJ driveshafts. They ALL have the sticker on them. Rear ones, Don't know about the front. image_209027.gif

 

stop getting annoyed...it's NOT original if it's an ax15. the aluminum spacer further proves this.

Share this post


Link to post
Share on other sites

Perhaps a little explanation here of where I'm coming from, or been, might throw a little light on the subject. I drove my first Jeep, a surplus MB on grand dads farm in Mo. I was 12 , the year was 1947. He had 4 of them.They were sold in lots of 4 at the surplus auctions to keep the little people out.And to keep the auto dealers, manufacturers happy. I've been a jeep man ever since, probably owned over 2 dozen of them, MB's,GPW'S, CJ'S, FC150-170,Waggoneers, Gladiators,J10, J20.Thats not counting another 2 or 3 dozen junkers or parts vehicles. I could disassimble a CJ and reassemble it blindfolded.I never had anything to do with a XJ or MJ and was completely unfamiliar with them until maybe a year ago I bought a 89 Cherokee, wrecked.In the next 5-6 months I had 11 wrecked and 4 running XJ'S. Then in Aug this year I got my first MJ.So the point is I was not all that familiar with MJ'S and may have assumed or jumped to the wrong conclusion to quickly. I now have 5 MJ'S and a little more knowledge of them, with a lot of credit for that knowledge going to the fine knowledgeable people in CC.When I got my first one, a 1989 SB, 2WD,5speed and I assumed it was all original based on what I could see. I got a Chilton manual and checked out everything to see what I had. Which I determined to be a 2.5 a AX15 and a Dana 35. A more careful recent inspection reaafirms the AX 15 but not the motor. I'm still not sure it's ancestry but working on it. I apologize for all the confusion I created when I stated 'ALL ORIGINAL" but I'm still happy with the son of a gun and wish I'd found MJ sooner.Jim :cheers:

Share this post


Link to post
Share on other sites
Perhaps a little explanation here of where I'm coming from, or been, might throw a little light on the subject. I drove my first Jeep, a surplus MB on grand dads farm in Mo. I was 12 , the year was 1947. He had 4 of them.They were sold in lots of 4 at the surplus auctions to keep the little people out.And to keep the auto dealers, manufacturers happy. I've been a jeep man ever since, probably owned over 2 dozen of them, MB's,GPW'S, CJ'S, FC150-170,Waggoneers, Gladiators,J10, J20.Thats not counting another 2 or 3 dozen junkers or parts vehicles. I could disassimble a CJ and reassemble it blindfolded.I never had anything to do with a XJ or MJ and was completely unfamiliar with them until maybe a year ago I bought a 89 Cherokee, wrecked.In the next 5-6 months I had 11 wrecked and 4 running XJ'S. Then in Aug this year I got my first MJ.So the point is I was not all that familiar with MJ'S and may have assumed or jumped to the wrong conclusion to quickly. I now have 5 MJ'S and a little more knowledge of them, with a lot of credit for that knowledge going to the fine knowledgeable people in CC.When I got my first one, a 1989 SB, 2WD,5speed and I assumed it was all original based on what I could see. I got a Chilton manual and checked out everything to see what I had. Which I determined to be a 2.5 a AX15 and a Dana 35. A more careful recent inspection reaafirms the AX 15 but not the motor. I'm still not sure it's ancestry but working on it. I apologize for all the confusion I created when I stated 'ALL ORIGINAL" but I'm still happy with the son of a gun and wish I'd found MJ sooner.Jim :cheers:

 

nice history. I don't have background in anything but comanches, cherokees, and some VW...I'm 23 now, have had/worked on a comanche since I was 12 or 13, and I've owned over 15 MJ's and around 5 xj's.

 

I can tell you flat out that the trans was swapped in. please don't take me as a jerk etc...I'm just telling you what it is. an owners manual can help you identify transmissions and whatnot, but it's only going to show you general information about all of the transmissions.

Share this post


Link to post
Share on other sites

I don't think of anybody as a jerk. Until they prove to me that they are. You haven't done that. This is a forum where everyone is free to express an opinion and help each other.

Share this post


Link to post
Share on other sites

ok back to it....

 

comanche rear drive shaft lengths-eye to eye

 

_lwb,_2.8,_____tf 3speed,___np207,______________d35= 54"

 

_ lwb,_4.0,_____aw4,__________np231,___d44= 48"_____d35= 49"

_lwb,_4.0,_____aw4,__________2wd,_____d44= _____d35=

_lwb,_4.0,_____ax15-ba10/5,__np231,___d44= 49"_____d35= 50"

_lwb,_4.0,_____ax15-ba10/5,__2wd,_____d44= _____d35=

_swb,_4.0,_____aw4,__________np231,___d44= 41.25"__d35= 42.35"

*swb,_4.0,_____aw4,__________2wd,_____d44= 52.125"_d35= 53.125"

_swb,_4.o,_____ax15-ba10/5,__np231,___d44= 42.25"__d35= 43.25"

*swb,_4.0,_____ax15-ba10/5,__2wd,_____d44= 52.125"_d35= 53.125"

 

_lwb,_2.5-2.8,_ax5-ax4_______2wd,_____d44= 63.75"__d35= 64.75"

_swb,_2.5-2.8,_ax5-ax4_______2wd,_____d44= 57.5"___d35= 58.5"

 

ax15-ba10/5 (same length) are 1" shorter than aw4

d44, chr8.25 have a 1" longer snout than d35

 

*posibly an exception to the rule, manual and auto trannys being same length

due to 2wd tailpeice (waiting for confirmation)

 

 

 

 

 

so we still need 4x4 2.5l lengths, measurements of 2wd trannys, and amc 20 info

Share this post


Link to post
Share on other sites
and amc 20 info

 

dang it, that was my baby wasn't it. :doh: I'll go wander over there right now.

Share this post


Link to post
Share on other sites

comanche rear drive shaft lengths-eye to eye

 

lwb,_2.8,____tf 3speed,____np207,_amc20= ________d35= 54"

lwb,_2.8,____ax5-ax4,______np207,_amc20= 53.75___d35=

lwb,_2.8,____ax5-ax4,______2wd,___amc20= ________d35= 64.75"

 

lwb,_4.0,____aw4,__________np231,___d44= 48"_____d35= 49"

lwb,_4.0,____aw4,__________2wd,_____d44= ________d35=#

lwb,_4.0,____ax15-ba10/5,__np231,___d44= 49"_____d35= 50"

lwb,_4.0,____ax15-ba10/5,__2wd,_____d44= ________d35=#

swb,_4.0,____aw4,__________np231,___d44= 41.25"__d35= 42.35"

swb,_4.0,____aw4,__________2wd,_____d44= 52.125"_d35= 53.125" *

swb,_4.o,____ax15-ba10/5,__np231,___d44= 42.25"__d35= 43.25"

swb,_4.0,____ax15-ba10/5,__2wd,_____d44= 52.125"_d35= 53.125" *

 

lwb,_2.5,____ax5-ax4,______2wd,_____d44= 63.75"__d35= 64.75"

swb,_2.5,____ax5-ax4,______2wd,_____d44= 57.5"___d35= 58.5"

lwb,_2.5,____ax5-ax4,______np231,___d44= ________d35= #

swb,_2.5,____ax5-ax4,______np231,___d44= ________d35= #

lwb,_2.5,____tf 3speed,____np207,___amc20=_____d35= 54"

 

ax15-ba10/5 (same length) are 1" shorter than aw4

d44, chr8.25 have a 1" longer snout than d35

 

# measurements still needed

 

*possibly an exception to the rule, manual and auto trannys being

same length due to 2wd tailpiece, can someone please measure

 

can someone get the difference between the amc20 and d35

(center of axle tube to center of pinion u-joint)

Share this post


Link to post
Share on other sites
Do we need 2.5 ax4 2wd dana 35?

no we have both lwb and swb

lwb,_2.5,____ax5-ax4,______2wd,_____d44= 63.75"__d35= 64.75"

swb,_2.5,____ax5-ax4,______2wd,_____d44= 57.5"___d35= 58.5"

 

suggestions to make it less confusing welcome.

added the underscores to keep it from compacting when i copy and paist

Share this post


Link to post
Share on other sites

This better? I generalized the terms.

 

lwb + 2.8 + auto + 4wd with d35 = 54.00" or with M20 = _____

lwb + 2.8 + stick + 4wd with d35 = _____ or with M20 = 53.75"

lwb + 2.8 + stick + 2wd with d35 = 64.75" or with M20 = _____

lwb + 2.8 + auto + 2wd with d35 = 54.00" or with M20 = _____

 

lwb + 4.0 + auto + 4wd with d35= 49.00" or with d44 = 48.00"

lwb + 4.0 + auto + 2wd with d35 = _____ or with d44 = _____

lwb + 4.0 + stick + 4wd with d35 = 50.00" or with d44 = 49.00"

lwb + 4.0 + stick + 2wd with d35 = _____ or with d44 = _____

swb + 4.0 + auto + 4wd with d35 = 42.25" or with d44 = 41.25"

swb + 4.0 + auto + 2wd with d35 = 53.125 or with d44 = 52.125"

swb + 4.0 + stick + 4wd with d35 = 43.25" or with d44 = 42.25"

swb + 4.0 + stick + 2wd with d35 = 53.125 or with d44 = 52.125"

lwb + 2.5 + stick + 2wd with d35 = 64.75" or with d44 = 63.75"

swb + 2.5 + stick + 2wd with d35 = 58.50" or with d44 = 57.50"

lwb + 2.5 + stick + 4wd with d35 = _____ or with d44 = _____

swb + 2.5 + stick + 4wd with d35 = _____ or with d44 = _____

lwb + 2.5 + auto + 4wd with d35 = 54.00" or with M20 = _____

 

ax15-ba10/5 (same length) are 1" shorter than aw4

d44, chr8.25 have a 1" longer snout than d35

Share this post


Link to post
Share on other sites

not sure if I have the patience to convert everything to millimeters. :D

Share this post


Link to post
Share on other sites

I still disagree with the chart, as my stock drive shaft is still 48.25" long, and the chart still insists it should be 49". That is for an 87 4.0/AW4/NP231/D35/LWB.

 

Did anyone else with the same set up actually measure?

Share this post


Link to post
Share on other sites

this needs to be in microsoft excel format...I don't know how to add an excel page to the internet here or I would take care of it.

 

 

 

that chart is just too confusing

Share this post


Link to post
Share on other sites

when it is finished, someone can plop it into excel and snap a screenshot of it. :dunno:

 

but we still need more data. and clearing up discrepancies is key.

Share this post


Link to post
Share on other sites
not sure if I have the patience to convert everything to millimeters. :D

I don't convert anything. I just keep a set of measuring tools in both ASE and Metric handy.

Also there's conversion charts all over the place.

Share this post


Link to post
Share on other sites

I also must comment on the LWB 4.0 AW4 231 D44. Checked it twice. my measurement is 47 1/2. Also sticker label 8953004663 A7G

Share this post


Link to post
Share on other sites

comanche rear drive shaft lengths-eye to eye

 

lwb,_2.8,____tf 3speed,____np207,_amc20= ________d35= 54"

lwb,_2.8,____ax5-ax4,______np207,_amc20= 53.75___d35= #

lwb,_2.8,____ax5-ax4,______2wd,___amc20= ________d35= 64.75"

 

lwb,_4.0,____aw4,__________np231,___d44= 47.5"___d35= 48.25"

lwb,_4.0,____aw4,__________2wd,_____d44= ________d35= #

lwb,_4.0,____ax15-ba10/5,__np231,___d44= 49"_____d35= 50"

lwb,_4.0,____ax15-ba10/5,__2wd,_____d44= ________d35= #

swb,_4.0,____aw4,__________np231,___d44= 41.25"__d35= 42.35"

swb,_4.0,____aw4,__________2wd,_____d44= 52.125"_d35= 53.125" *

swb,_4.o,____ax15-ba10/5,__np231,___d44= 42.25"__d35= 43.25"

swb,_4.0,____ax15-ba10/5,__2wd,_____d44= 52.125"_d35= 53.125" *

 

lwb,_2.5,____ax5-ax4,______2wd,_____d44= 63.75"__d35= 64.75"

swb,_2.5,____ax5-ax4,______2wd,_____d44= 57.5"___d35= 58.5"

lwb,_2.5,____ax5-ax4,______np231,___d44= ________d35= #

swb,_2.5,____ax5-ax4,______np231,___d44= ________d35= #

lwb,_2.5,____tf 3speed,____np207,___d44= 53"_____d35= 54"

Share this post


Link to post
Share on other sites

I can get the length of the LWB 2.8L TourqueFlight np207 amc20 rear axle today... But then I'll need someone to tell me a few things about the slip yoke and driveshaft lengths...

 

I'm going to swap the axles from my 86 2.8l torqueflight np207 amc 20 into my 88 4.0l aw4 np231 d35c.... My question is will I be able to use either rear driveshaft in either truck after I'm done switching axles without having it lengthened or shortened??... I don't know how much length the slip yoke has to it... :dunno: If there is a an inch difference either way can the shaft still be used unaltered??

 

I'll have that measurement in a few hours once the babysitter (grandma) gets here...

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.


×
×
  • Create New...