SD diesels were widely available in the US in the 1981-86 Datsun/Nissan 720 pickups, and in Canada through '87 in the D21 pickup.
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What is the difference between them? looking at rebuild kits and some say forklift only.
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The biggest difference that I know of is the piston, 5 ring vs 3 ring. The injection pump is also usually mechanical instead of vacuum and there may be other smaller differences like the oil squirters.
1982 720 SD22
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