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post #1 of (permalink) Old 03-07-2005, 01:52 PM
JohnR
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AX 15 in 84 CJ requirements

I am thinking of replacing my t176 with an AX15 for the overdrive and seem to be able to find them cheep as compared to a NV3550.

My questions are:
1) what do I need to look for in an AX 15 to fit AMC 258 84CJ7. I have read a little about internal and external throw out bearings but not sure what to really look for when purchasing. I have also heard of short a long input shafts. What is need for this swap?

2) what conversion kits do I need to make it fit the AMC258 and a Dana 300?
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post #2 of (permalink) Old 03-07-2005, 02:00 PM
 
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Re: AX 15 in 84 CJ requirements

How does the durability of an AX-15 compare to a T-5? T-5's are common and came with the dana300. Yes, they are light duty, but mine has served me well. It needed rebuilding at 180,000 km's and is holding together fine after 7 or 8 years of daily driving. Of course, excuse me if the AX 15 is a much better transmission.
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post #3 of (permalink) Old 03-07-2005, 03:47 PM
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Re: AX 15 in 84 CJ requirements

Why center on an AX15?

IMHO... I wouldn't throw an AX15 in a CJ unless someone kicked half my brains out. There are so many transmissions that are compatible, Don't forget to price the adapter for the Dana300 transfer case...mounts, cables, electrics, and the cost of the medication to treat what ever is causing this idea.

IMHO, you're opening a can of worms and you'd be better served adapting good ol' USA iron into that Jeep.
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post #4 of (permalink) Old 03-07-2005, 04:38 PM
 
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Re: AX 15 in 84 CJ requirements

Have you seen this guys ads? He sells rebuilt Nv3550's with a one year warranty for $900.00 NV3550
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post #5 of (permalink) Old 03-07-2005, 05:19 PM
 
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Re: AX 15 in 84 CJ requirements

I'm not sure on the years for external slave ax15's, maybe early 90's. I think you need a 1" adapter to go from an ax15 to a 300. I gota agree the t-5 is a better option, it's cheeper and is a factory trans for your jeep. I might be wrong but i'm guessing the t-5 and ax15 are about the same in strenght, the t-5 is just a ton cheeper (good luck finding a good ax15 for under $500).
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post #6 of (permalink) Old 03-07-2005, 08:17 PM
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Re: AX 15 in 84 CJ requirements

[ QUOTE ]
Have you seen this guys ads? He sells rebuilt Nv3550's with a one year warranty for $900.00 NV3550

[/ QUOTE ]

Yes, I even called him, got his address and was going to drop in to see him... but I never did. I'm often within a few blocks of his place and can make an effort to check him out if anyone is interested.

I was thinking NV4500, he does those too. [img]images/graemlins/laugh.gif[/img]

[img]images/graemlins/40BEER.gif[/img]
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post #7 of (permalink) Old 03-08-2005, 10:13 PM
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Re: AX 15 in 84 CJ requirements

I haven't really seen anything for comparibility other than the Jeep Owners Bible. I think it rates them about the same good for six cylinders maybe not 8s. I never plan to replace my straight six. The main reason to go with an AX15 is the over drive. The options that make the most sense are the AX15 or the NV3550 for an overdrive. NV3550s seem to be several hundred higher but are newer. I have 4.10s and 31inch tires. My plan was to go bigger tires but ran out of money.So if I want to take a trip top speed is about 65 at 3000 rpm. Thanks for the response.
post #8 of (permalink) Old 03-08-2005, 10:17 PM
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Re: AX 15 in 84 CJ requirements

If you've got some affordable ideas with an overdrive and easy to fit I'd like to know. It is about $2000 for a new 3550 set up and maybe 1500 used from what I have found. The 45?? is a little long and I didn't want to deal with the shortened drive shaft.
post #9 of (permalink) Old 03-08-2005, 10:23 PM
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Re: AX 15 in 84 CJ requirements

Thanks, I didn't see this post. I prefer the 3550 because it is newer and it looks like this price is comparible to the AX 15 rebuilt.
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