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OEM Transfer Cases

Started by IowaEagle, June 11, 2004, 12:46:01 PM

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redneckjames

#30
July 04, 2011, 02:28:06 PM Last Edit: July 04, 2011, 02:36:18 PM by redneckjames
will a 231 or a 242 bolt up to my tranny? i have an 85 and i think the tranny is an 727 or a 904?

and also whats the spline count on my 129?

mudkicker715

#31
July 04, 2011, 02:38:35 PM
Lif auto than most likely a998. Will bolt up, but driveshaft mods come in. You can use the eagle intermediate housing to save some so you do not have to mod the front driveshaft. However the rear slips into a 242. And than needs ca. 10 inches added to it.

I run a 242



Manitowoc WI

redneckjames

#32
July 05, 2011, 01:48:05 PM
Quote from: mudkicker715 on July 04, 2011, 02:38:35 PMHowever the rear slips into a 242. And than needs ca. 10 inches added to it.

i dont know what your trying to say right there ^ but i would like to run a 242 or 231 i know i may need to modify the driveshafts but will they mate to my transmission?

mudkicker715

#33
July 05, 2011, 02:11:25 PM
The rear output of the 242 has the shaft slip into it instead of bolting on.

Yes it will bolt up



Manitowoc WI

eaglefreek

#34
July 05, 2011, 03:24:35 PM
The eagle has a fixed rear yoke. The drive shaft bolts up to the transfer case. On the 242 the rear shaft slips into the transfer case.
Fixed


Slip
1986 AMC Eagle Wagon 4.2L/4.0L head, AW4,NP242, Chrysler 8.25" rear.
1981 AMC Eagle Wagon As Seen On TV  Lost In Transmission




"I know he'd be a poorer man, if he never saw an eagle fly,
Rocky mountain high"  John Denver
Click for Fayetteville,TN Forecast" border="0" height="100" width="150

redneckjames

#35
July 05, 2011, 06:35:16 PM
Ok so a 242 will work and a 231? I have an s10 with a 231c in it, I guess the 231 c means Chevrolet? Any chance of that working? Also what's the spline count on that 242? Y'all are helping me a ton!

mudkicker715

#36
July 05, 2011, 06:50:45 PM
28



Manitowoc WI

eaglefreek

#37
July 05, 2011, 10:18:50 PM
S10 case won't work. But would be good for someone who wanted to adapt a GM 700r transmission to their AMC engine and not want to spend the extra money adapting the Eagle or a Jeep transfer case since the S10 TC is driver's drop.
1986 AMC Eagle Wagon 4.2L/4.0L head, AW4,NP242, Chrysler 8.25" rear.
1981 AMC Eagle Wagon As Seen On TV  Lost In Transmission




"I know he'd be a poorer man, if he never saw an eagle fly,
Rocky mountain high"  John Denver
Click for Fayetteville,TN Forecast" border="0" height="100" width="150

redneckjames

#38
July 08, 2011, 02:30:25 PM
i didnt think the s10s would but i got a 231j installed last night, now i need driveshafts and my eagle is done! :)


BTW i have a 129 for sale if anybodys interested..........

its disasembled but all the pieces are there it just needs a bearing, it still works fine but the bearings are about to go

BlueEagle

#39
January 12, 2013, 07:02:27 PM
My Chilton's says that the 80-81 model transfer case uses 1030 motor oil. I'm thinking that is just for the 119 t-case, and not for the NP129 that I have in my 81. It says to use Dexton II in 1982 and later, which I also assume are all outfitted with NP129s like mine.  Make sense?

eaglefreek

#40
January 12, 2013, 07:31:53 PM
AMC later recommended to use Dexron in all the Eagle transfer cases.
1986 AMC Eagle Wagon 4.2L/4.0L head, AW4,NP242, Chrysler 8.25" rear.
1981 AMC Eagle Wagon As Seen On TV  Lost In Transmission




"I know he'd be a poorer man, if he never saw an eagle fly,
Rocky mountain high"  John Denver
Click for Fayetteville,TN Forecast" border="0" height="100" width="150

lapoltba

#41
January 12, 2013, 07:47:22 PM
"all" as in every year, every model?  Just want to be sure since i'm in the process of doing a clutch and changing all fluids.

Don't mean to change subjects but is Dextron suitable for the t4 as well?  I read conflicting info.  Some say 90w and some say Dextron.

greymarooneightytwo

#42
January 12, 2013, 08:08:52 PM Last Edit: January 12, 2013, 08:12:45 PM by greymarooneightytwo

The Eagles all used the 23 spline transfer cases, regardless of the transmission they were used behind.

Can't say for certain, but here's the source:http://www.n0kfb.org/homepage/amc/tech/transfer_case/swap/index.htm

BlueEagle

#43
January 12, 2013, 08:12:03 PM
Good to know. Thanks.

greymarooneightytwo

#44
January 12, 2013, 08:14:31 PM
There's a pretty neat chart on that page, which lists the features and characteristics of the New Process transfer cases...
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