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- - 3 speed questions (https://67-72chevytrucks.com/vboard/showthread.php?t=661441)

minitruckr28

02-25-2015 02:58 AM

3 speed questions

Hello guys, i have a 1979 chevy shortbed with a 250 straight six and a 3 speed. i was wondering if any one know the serial number for these trannys. When i bought the truck the tranny was pulled and and there are to trannts in the bed both three sppeed both different but the same bolt pattern? Will a early c10 tranny work in it? thanks

Keith Seymore

02-25-2015 08:10 AM

Re: 3 speed questions

Can you post a pic?

The original three speed would have been a Saginaw (with one of two low gear ratios) and was essentially a passenger car transmission.

K

walkerb

02-25-2015 08:32 AM

Re: 3 speed questions

should be a 5 bolt truck Saginaw.

minitruckr28

02-26-2015 04:51 PM

Re: 3 speed questions

i found out its a muncie but its junk :( the gears are fragged time for rebuild lol

greg64

02-26-2015 06:57 PM

Re: 3 speed questions

Do you do any highway driving with your truck? I have a lot of experience with 250 straight sixes, and may have some advice you can use.

minitruckr28

03-01-2015 09:24 PM

Re: 3 speed questions

No not really............Ill most likely change it to a 350 and auto soon

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