3 speed manual - The 1947 - Present Chevrolet & GMC Truck Message Board Network

notahybrid · 03-02-2007, 10:36 AM

I have a 68 c10. The truck has a 250 that has parts from varrious vehicles, ie. intake and carb from a Buick. The engine runs fine after a little tinkering however, my transmission pops out of R and 1st after rolling about 10ft. 2nd and 3rd seem to be driveable, also this does not seem to be a linkage issue nor does the floor panel interfere with the shifter operation (originally a column but was converted to floor). My question is, does anyone know of a 3 speed GM manual transmission that has a 4 bolt side cover???? I know this does not match the description of the warners, saginaws, or muncis of that era. I currently do not have the casting numbers but can provide if needed. I suspect that this is an older tranny that was slapped in prior to my ownership. Any info would be greatly appreciated.

northerngmc · 03-02-2007, 11:36 AM

Take a look at the FAQ Truck Tech area.

I know there is a good post on adjusting the 3 speed columns, with pictures....
http://67-72chevytrucks.com/vboard/s...d.php?t=215307

I thought there was one as well on installing a 3 speed floor shifter.

Godd luck

notahybrid · 03-02-2007, 02:46 PM

Thanks I'll take a look.

notahybrid · 03-02-2007, 07:09 PM

OK I did find a site with a Muncie 3 speed with a four bolt cover. I also have the casting numbers as follows:
16
GM
3830210
T

Also 3731911 is on the side cover

GM t is on the tail

03-02-2007, 10:36 AM	#1
notahybrid Registered User Join Date: Mar 2007 Location: Chesapeake, Virginia Posts: 39	3 speed manual I have a 68 c10. The truck has a 250 that has parts from varrious vehicles, ie. intake and carb from a Buick. The engine runs fine after a little tinkering however, my transmission pops out of R and 1st after rolling about 10ft. 2nd and 3rd seem to be driveable, also this does not seem to be a linkage issue nor does the floor panel interfere with the shifter operation (originally a column but was converted to floor). My question is, does anyone know of a 3 speed GM manual transmission that has a 4 bolt side cover???? I know this does not match the description of the warners, saginaws, or muncis of that era. I currently do not have the casting numbers but can provide if needed. I suspect that this is an older tranny that was slapped in prior to my ownership. Any info would be greatly appreciated.

03-02-2007, 11:36 AM	#2
northerngmc Registered User Join Date: Jan 2004 Location: Whitehorse YK Canada Posts: 2,651	Re: 3 speed manual Take a look at the FAQ Truck Tech area. I know there is a good post on adjusting the 3 speed columns, with pictures.... http://67-72chevytrucks.com/vboard/s...d.php?t=215307 I thought there was one as well on installing a 3 speed floor shifter. Godd luck __________________ Blaine 59 GMC 9314 a.k.a. Whoopee 68 C20 50th Anniversary a.k.a. The Rat http://www.flickr.com/photos/northerngmc/ http://www.members.tripod.com/P-wee/index_032.htm 1.61803 is one H of a lot better than 3.14159, no really it is!

03-02-2007, 02:46 PM	#3
notahybrid Registered User Join Date: Mar 2007 Location: Chesapeake, Virginia Posts: 39	Re: 3 speed manual Thanks I'll take a look.

03-02-2007, 07:09 PM	#4
notahybrid Registered User Join Date: Mar 2007 Location: Chesapeake, Virginia Posts: 39	Re: 3 speed manual OK I did find a site with a Muncie 3 speed with a four bolt cover. I also have the casting numbers as follows: 16 GM 3830210 T Also 3731911 is on the side cover GM t is on the tail

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