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TF 998->AX15

Started by juhap, July 23, 2012, 04:27:42 PM

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juhap

July 23, 2012, 04:27:42 PM
Can I swap my tf 998 to ax15 manual and use original non-select drive transfer case?

The Jeep AX15 was factory-married to the Jeep  New Process 231 transfer case it has 23 splines output shaft. Does Eagle transfer case use that same? And do bolts fit?

American 440 Hardtop, American 220 2d (x2), American 330 4 d, American 330 Cross Country(x2), American F/EX Gasser, AMC Eagle STW (x4), AMC Matador Coupe Oleg Cassini(2x), Hornet 2d (x3), Willys Jeepster 1950, Jeep Cherokee 2d, Rogue 1966-SCRambler Replica
http://www.cardomain.com/ride/2465938  eagle
http://www.cardomain.com/ride/2465930   american
http://www.cardomain.com/ride/2263025   american HT

eaglefreek

#1
July 23, 2012, 07:43:12 PM
Depending which AX15 you get it may bolt up just fine. There are different input shaft lengths on transfer cases and I think our cases have the longest of the lengths available. You may have to cut down the input shaft or add a 7/8" spacer between the transmission and transfer case. According to this link you should be fine. http://www.novak-adapt.com/knowledge/np_nvg_input_gears.htm
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,
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juhap

#2
July 24, 2012, 12:32:05 AM
Hmm that is interesting...

Splines are the same... and the bolt circle...

How about length of automatic vs. AX 15+bellhousing ?
American 440 Hardtop, American 220 2d (x2), American 330 4 d, American 330 Cross Country(x2), American F/EX Gasser, AMC Eagle STW (x4), AMC Matador Coupe Oleg Cassini(2x), Hornet 2d (x3), Willys Jeepster 1950, Jeep Cherokee 2d, Rogue 1966-SCRambler Replica
http://www.cardomain.com/ride/2465938  eagle
http://www.cardomain.com/ride/2465930   american
http://www.cardomain.com/ride/2263025   american HT

carnuck

#3
July 24, 2012, 03:16:54 PM
The AX-15 and AW4 need a 1" spacer ring to fit the Eagle and FSJ tcases because they are shallow and the the trans output is longer. Beware some early year XJ trans are 21 spline (till 08/90 for the AW4s)
AMC/Jeep gauges are for amusement only. Any correlation between them and reality is purely coincidental!

mudkicker715

#4
July 24, 2012, 04:23:35 PM
Never used a spacer.

However I. Am pretty certain I used the eagles intermediate housing for an aw4.



Manitowoc WI

juhap

#5
July 25, 2012, 04:28:58 PM
So, what have I learned...

I can take out old tf998 and flexplate and replace them using AX15 manual transmission and bellhousing. is it that simple? Everything is bolt on?

What if ax15 comes from 2,5 diesel motor? Does diesel bellhousing fit to Eagles 258? If not, do I need 4.0 part or can I use some Jeep 3-speed parts? and then external clutch linkage?
American 440 Hardtop, American 220 2d (x2), American 330 4 d, American 330 Cross Country(x2), American F/EX Gasser, AMC Eagle STW (x4), AMC Matador Coupe Oleg Cassini(2x), Hornet 2d (x3), Willys Jeepster 1950, Jeep Cherokee 2d, Rogue 1966-SCRambler Replica
http://www.cardomain.com/ride/2465938  eagle
http://www.cardomain.com/ride/2465930   american
http://www.cardomain.com/ride/2263025   american HT

mudkicker715

#6
July 25, 2012, 04:42:48 PM
Gonna have to say that no external clutch linkage will work. its very tight down there.



Manitowoc WI

juhap

#7
July 25, 2012, 05:29:48 PM
Quote from: mudkicker715 on July 25, 2012, 04:42:48 PM
Gonna have to say that no external clutch linkage will work. its very tight down there.

OK

How about that bellhousing issue?

And thank you for all pieces of information I´m getting...  :hello2:
American 440 Hardtop, American 220 2d (x2), American 330 4 d, American 330 Cross Country(x2), American F/EX Gasser, AMC Eagle STW (x4), AMC Matador Coupe Oleg Cassini(2x), Hornet 2d (x3), Willys Jeepster 1950, Jeep Cherokee 2d, Rogue 1966-SCRambler Replica
http://www.cardomain.com/ride/2465938  eagle
http://www.cardomain.com/ride/2465930   american
http://www.cardomain.com/ride/2263025   american HT

standup650

#8
July 25, 2012, 07:39:24 PM
Quote from: mudkicker715 on July 25, 2012, 04:42:48 PM
Gonna have to say that no external clutch linkage will work. its very tight down there.
I'm going to the junk yard to rip out the whole clutch assem. with external slave, out of a nissan sentra. i just put a new motor in the wife's sentra and the clutch goodies are small and i think will work perfect.

carnuck

#9
July 25, 2012, 07:58:50 PM
Quote from: juhap on July 25, 2012, 04:28:58 PM
So, what have I learned...

I can take out old tf998 and flexplate and replace them using AX15 manual transmission and bellhousing. is it that simple? Everything is bolt on?

What if ax15 comes from 2,5 diesel motor? Does diesel bellhousing fit to Eagles 258? If not, do I need 4.0 part or can I use some Jeep 3-speed parts? and then external clutch linkage?

Toyota diesel? Jeep put the AX-5 (I think) behind the 2.1L turbo diesel Renault motor in XJs.
AMC/Jeep gauges are for amusement only. Any correlation between them and reality is purely coincidental!

juhap

#10
July 26, 2012, 12:49:11 AM
Sorry... 2.1 Renault TurboDiesel it is...
American 440 Hardtop, American 220 2d (x2), American 330 4 d, American 330 Cross Country(x2), American F/EX Gasser, AMC Eagle STW (x4), AMC Matador Coupe Oleg Cassini(2x), Hornet 2d (x3), Willys Jeepster 1950, Jeep Cherokee 2d, Rogue 1966-SCRambler Replica
http://www.cardomain.com/ride/2465938  eagle
http://www.cardomain.com/ride/2465930   american
http://www.cardomain.com/ride/2263025   american HT
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