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Gen 4 to Gen 3 Bed swap? 1984 Mazda b2000

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Old Mar 14, 2025 | 11:06 AM
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Default Gen 4 to Gen 3 Bed swap? 1984 Mazda b2000

Hey everybody,

I've been digging and I can't seem to find an answer to this one:
I'm looking to replace the bed on my '84 b2000 and I found an '86 b2000 in great shape, but I'm not sure if the swap would work.
Both trucks are short cab, long bed, and the beds look super similar, but I'm just concerned that frame differences would mean the bolts don't line up correctly.
Has anybody run into this before, or have familiarity with the frame/bed differences? Thanks
 
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Old Mar 15, 2025 | 08:38 AM
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You might need to drill new holes in the acquired bed.
 
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Old Mar 23, 2025 | 10:27 PM
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Huh, I thought 79-84 was first gen.

Anyway, it's gonna be a big job. New exhaust that routes down the driver's side, new tank that rides behind the passenger, and you gotta modify the frame to receive the new tank.

Source: Considered getting an 86 tank for my 84
 
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Old Mar 24, 2025 | 08:28 PM
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Thanks for the tips! The '86 I saw got scooped up by someone else while I was considering it, but I'm seeing an '83 now that looks like it's in good shape. Same gen but the only thing that gives me pause is seeing that the gas cap is on the other side, I'll probably make the drive to check it out, and I already have to swap the exhaust on mine as well so I'll post an update if it works out.
 
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Old Mar 24, 2025 | 08:33 PM
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Oops nevermind, took a closer look at the pics and it seems like the guy that posted it had the year wrong, the search continues!
 
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