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**MidLifer** · 05-22-2016, 08:28 PM

IIRC, the larger diameter shaft is the right size for our vintage trucks and the smaller is not (I think the smaller shaft started with later model trucks). So it's possible that the old box wasn't right and the new one is.

05-22-2016, 08:28 PM	#4
MidLifer Senior Member Join Date: Apr 2011 Location: South NJ Posts: 1,268	Re: Power steering gearbox issue IIRC, the larger diameter shaft is the right size for our vintage trucks and the smaller is not (I think the smaller shaft started with later model trucks). So it's possible that the old box wasn't right and the new one is.