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Re: np203 questions
Remember np203s use light oil 30 weight tops i prefer 10-40. ALso if you part time it get some half inch fittings and extend the filler 2 inches higher so the case holds 2 inches more oil. The part time kit stops the pump in the 203 . The extra oil lets it slosh lube.
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1979 Chevy Dually Crew 4X4 454, D60 Tru-trac, D70 Detroit Locker, 3.73, 4L80E/NP205
1971 GMC 3/4 Ton 4X4
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