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Old 03-12-2013, 07:44 PM   #1
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Will a 98 tj ax-15 fit 91 yj?

Both motors are 4.0 one has external slave which is a upgrade, but my question is will it bolt right into my 91 4.0 engine and connect to my transfer case the same?

Also this is first post so forgive me if i misplaced post.


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Old 03-12-2013, 07:52 PM   #2
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Yes, but I think you will need a different pilot bushing. About 90% sure they are a different size before 92. An nv3550 will also swap in and is slightly stronger.

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Old 03-13-2013, 06:24 PM   #3
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For the pilot bushing that can be pushed out with grease and the hammer trick correct? But the swap for the different pilot bushing should be a simple 5-10 minute swap if im not mistaken?
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Old 03-13-2013, 07:48 PM   #4
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Quote:
Originally Posted by UF0S AND BBQ View Post
For the pilot bushing that can be pushed out with grease and the hammer trick correct? But the swap for the different pilot bushing should be a simple 5-10 minute swap if im not mistaken?
Yeah, not even 5-10 minutes, more like 2. But a slide hammer works better, then you don't need to wipe out the grease which is why I say 2.
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Complete rebuild axle/engine/everything swap in progress:
Parts already gathered for assembly: 2001 Ford 302, 1990 Mustang GT 5.0 ECU and wiring, NP435, NP205, Pair of axles from 04' F350 SuperDuty (Sterling 10.5 Posi rear, Dana 60HP Front-Both Disk Brakes 3.73 Gears), 37" H1 Tires, 9" lift TJ Coils for 2 link conversion in front, Stage 2 Clutch Kit, 3 Row Aluminum Radiator, Chevy Astro Steering box (4" front Stretch), XJ Rear Leaf Springs (6" Rear Stretch), and lots more.
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Old 03-14-2013, 06:49 PM   #5
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Thank you I appreciate your input!
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