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AX-15 Transmission Conversion Info Wanted

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brocksmith1984

New member
City
edmond
State
Ok
I am in the process of installing an AX-15 5 Speed manual transmission into my 84' scrambler (258). I am looking for some info about various questions I have for others who have completed this conversion and may have advice. If anyone has completed this conversion, Please reply!
 
I put the AX15 behind my 351W but not behind the straight 6. I'm sure there are some similarities so if you have any questions then I would be happy to help.
 
I put an AX15 behind the 258 in my red Scrambler.

I bought the adapter from Novak that uses a stock T176 bell housing. This allowed me to use the stock flywheel, clutch, starter, and clutch linkage. I used their adapter for the Dana 300, which is a clocking ring. I had to clock the transfer case up flat for the stock Dana 300 shifter to clear.

The AX15 shifter just about comes through a stock T5 floor plate. I bent the stock 300 shifter to get it through the original shifter boot.

Fairly simple swap. I'll post a link to my build thread later.
 
spankrjs said:
I put an AX15 behind the 258 in my red Scrambler.

I bought the adapter from Novak that uses a stock T176 bell housing. This allowed me to use the stock flywheel, clutch, starter, and clutch linkage. I used their adapter for the Dana 300, which is a clocking ring. I had to clock the transfer case up flat for the stock Dana 300 shifter to clear.

The AX15 shifter just about comes through a stock T5 floor plate. I bent the stock 300 shifter to get it through the original shifter boot.

Fairly simple swap. I'll post a link to my build thread later.
Click to expand...
wonderful! that answers pretty much all of the questions i had! thank you, that build thread would be great
 

Another Scrambler Purchase/Road Trip - UPDATE- BODY ON FRAME AGAIN

The Mopar MT fluid I used is similar to the Syncromesh/Amsoil. In fact, they are approved equals for the Mopar stuff. This stuff burnt in the first T5. Smelled slightly burned, discolored, no "oily feel" left, felt like water:shrug: On the NWC T5, there is not a 100% clear cut factory approved...
www.cj-8.com

Starts around Post #1195.

I have a 1' body lift, which is necessary if you want to use the stock transfer case shifter and the clocking angle I installed my Dana 300 at.
A twin stick might give more clearance, not sure.
I used the stock T5 transmission mount assembly, drilled three new holes in the OEM skid plate, bolted in like it was factory.
 
Hi... I put in my 81 Scrambler an AX15 behind a 4.0, using the original AX15 bellhousing, changing the stock clutch system for the Wrangler 1997 hydraulic unit and all Wrangler's clutch parts too. I used a clock ring adapter bougth so many time ago to Pirate 4X4, don't know if he are in bussiness still, but was perfet. Had to bend the stock lever a lot, in place I cut it and weld again...36.jpg
Had to do a minor trim at some AX15 fins at the rear, to clear the DANA 300 lever support...
 
I put the AX-15 behind my 1983 258, and converted from stock mechanical linkage to hydrualic clutch (I recommend this upgrade as well). I couldn't get the right pushrod length with Novak's slave cylinder in the AX-15 bellhousing. They looked into it and said "no one as ever done this exact setup before" and they made me a special aluminum spacer that allowed the slave and pushrod to fit properly. Over the years driving it, I've been hearing this little clicking sound down there when I push in the clutch. Just the other day, it "clicked" a lot louder than usual and the clutch pedal got a lot harder to push. I think I made have had my pushrod length too long or too short. Now I get to tear it apart and see what happened...(!?)
 
Also, the AX-15 has been great with one small exception. It doesn't seem to synchro very well going into reverse, and I have to double clutch if I want to avoid grinding... Anyone else have this issue?
 
I did this swap behind a 258 and loved it. I kind of wish I kept it when I went to the 4.8 LS motor. I do have the Novack clocking ring sitting on my shelf if you decide to do the swap I can sell it to you and save you a few bucks.
 
MomoJeep said:
Also, the AX-15 has been great with one small exception. It doesn't seem to synchro very well going into reverse, and I have to double clutch if I want to avoid grinding... Anyone else have this issue?
Click to expand...
Yes, mine is like that. But then most Toyota gear boxes I've had do that too. It might just be a Japanese gear box characteristic. I'm so used to it now that I double clutch to reverse without even thinking about it.
 
Just shift to 4th before reverse, no grind. I have not had to double clutch to get into reverse without grinding on my AX15. Most manuals do not have reverse syncro's, I find a shift to 4th will slow everything down and allow a grind free reverse shift :shrug:
 
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