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Unread 03-04-2013, 09:32 PM   #1
RenoF250
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1985 CJ7 
 
Join Date: Sep 2011
Location: Foresthill, CA
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AX-15 Flywheel

I am working on putting an AX-15 in my CJ7 and I am wondering, can I use the 4.2s flywheel with the AX-15 flywheel/starter?

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Unread 03-04-2013, 10:04 PM   #2
jeepwhore
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1984 CJ7 
 
Join Date: Jun 2006
Location: Kamloops, BC
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The flywheel and starter have to be matched whichever you use. If you are putting MPFI on this jeep use the flywheel for the AX15 donor as the CPS reads the notches in the flywheel. I've read that the clutch and pressure plate should match the transmission but I'm not sure how compatible the 4.2L flywheel is with that set up.
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'84 CJ-7: Yota axles (spartan locked front, e-locked rear) 4" BDS, 1" Daystar & 3/8" shackle lifts, 35" X-Terrains on steelies, YJ Tub & family roll bar, heater blower upgrade, 4.2L w/MC2100 & Team Rush, Warn 8274. Rebuilt 4.2/4.0 hybrid, AX15 and twin sticks/clocking ring waiting to go in.

The advertised position for a topless, dirty jeep girl has been filled......by my wife. Thanks to all that applied.
<------------and yes, that is her.
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Unread 03-05-2013, 06:54 PM   #3
RenoF250
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Quote:
Originally Posted by jeepwhore View Post
The flywheel and starter have to be matched whichever you use. If you are putting MPFI on this jeep use the flywheel for the AX15 donor as the CPS reads the notches in the flywheel. I've read that the clutch and pressure plate should match the transmission but I'm not sure how compatible the 4.2L flywheel is with that set up.
I have a 4.0L I intend to use in the future but I am going to run the 4.2L for now. Sounds like I will need the 4.0 flywheel now then. I can use the starter from the 4.0l so that is no problem.

Thanks
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