NP440 MY6 help - The 1947 - Present Chevrolet & GMC Truck Message Board Network

mdmcs1 · 10-17-2023, 04:27 PM

Hello All!

I am actually working on a 71 C10 that has a saginaw 4 speed in it right now, but i want to swap it out for an NP440 MY6 overdrive transmission and need your help (you guys are the experts on these since they were in the 80's) - i know from viewing pictures of this NP440 trans that a bunch of them do not have the exact same bolt pattern as the saginaw/muncie - but some do have the same. In my case, i need to retain the bellhousing that my truck currently has (saginaw 4 speed) and I want to find an NP440 / MY6 that has this same pattern - are they rare to the point i wont find one?

10-17-2023, 04:27 PM	#1
mdmcs1 Registered User Join Date: Jul 2004 Location: Huron, SD Posts: 21	NP440 MY6 help Hello All! I am actually working on a 71 C10 that has a saginaw 4 speed in it right now, but i want to swap it out for an NP440 MY6 overdrive transmission and need your help (you guys are the experts on these since they were in the 80's) - i know from viewing pictures of this NP440 trans that a bunch of them do not have the exact same bolt pattern as the saginaw/muncie - but some do have the same. In my case, i need to retain the bellhousing that my truck currently has (saginaw 4 speed) and I want to find an NP440 / MY6 that has this same pattern - are they rare to the point i wont find one? Last edited by cwcarpenter98; 10-18-2023 at 11:17 PM. Reason: Edited out WTB



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