Switching from 3OTT to automatic - The 1947 - Present Chevrolet & GMC Truck Message Board Network

35boulder · 10-30-2017, 01:01 PM

So from the replies to a different thread I'm informed I need a different transmission crossmember. Are these an aftermarket item or are they readily available on our parts forum. Anybody have any pics of what I'm looking for? By the way its for a SBC.
Thanks

Coley · 10-30-2017, 01:27 PM

I think the automatic cross member is different ....but wait until the experts weigh in.
That said, if it turns out that you need one....advertise as 'WTB' in the parts section and you'll probably have what you need within a couple of weeks (or less)...I don't think these are really expensive items used and this would be the place to find a spare one.

Regards,
Coley

**Grumpy old man** · 10-30-2017, 02:39 PM

There's a lot to do and buy to switch over from the 3 speed to auto .What's wrong with the current trans?

67ChevyRedneck · 10-30-2017, 03:05 PM

Yes, the 3 spds all had a cross member that bolts to the bell housing, which will not work for an auto.

Any 67-72 automatic cross member will work, but they are getting hard to come by/find. I have no experience with aftermarket ones, but as suggested, post a "want to buy" in the for sale area and see what happens.

**Jeff's bowtie's** · 10-30-2017, 03:40 PM

I have two cross members if your interested here's a pic off one thanks

10-30-2017, 01:01 PM	#1
35boulder Registered User Join Date: Oct 2015 Location: Dallas Texas Posts: 1,380	Switching from 3OTT to automatic So from the replies to a different thread I'm informed I need a different transmission crossmember. Are these an aftermarket item or are they readily available on our parts forum. Anybody have any pics of what I'm looking for? By the way its for a SBC. Thanks Last edited by 35boulder; 10-30-2017 at 01:06 PM.

10-30-2017, 01:27 PM	#2
Coley Registered User Join Date: Oct 2011 Location: Victoria, B.C Posts: 3,794	Re: Switching from 3OTT to automatic I think the automatic cross member is different ....but wait until the experts weigh in. That said, if it turns out that you need one....advertise as 'WTB' in the parts section and you'll probably have what you need within a couple of weeks (or less)...I don't think these are really expensive items used and this would be the place to find a spare one. Regards, Coley __________________ ....for some men, there is experience, skill and effort....for the others...there is visa and UPS LOL 1966 Chevy 1/2 ton (Florida- Red/white) 1972 Chevy 1/2 ton (California- Blue/white) 2005 Chevy Silverado HD2500/Duramax 2000 Dodge Ram 1500

10-30-2017, 02:39 PM	#3
Grumpy old man Senior Member Join Date: Dec 2013 Location: Gods country East,Tn Posts: 8,545	Re: Switching from 3OTT to automatic There's a lot to do and buy to switch over from the 3 speed to auto .What's wrong with the current trans?

10-30-2017, 03:05 PM	#4
67ChevyRedneck Hittin E-Z Street on Mud Tires Join Date: Nov 2004 Location: Greenville, SC Posts: 23,090	Re: Switching from 3OTT to automatic Yes, the 3 spds all had a cross member that bolts to the bell housing, which will not work for an auto. Any 67-72 automatic cross member will work, but they are getting hard to come by/find. I have no experience with aftermarket ones, but as suggested, post a "want to buy" in the for sale area and see what happens. __________________ Jesse James 1967 C10 SWB Stepside: 350/700R4/3.73 1965 Ford Mustang: 289/T5-5spd/3.25 Trac-Loc 1968 Pontiac Firebird: Project Fire Chicken! 2015 Silverado Double Cab 5.3L Z71 2001 Jeep Wrangler Sport 4.0L 5spd 2020 Chevrolet Equinox Premium 2.0L Turbo 2011 Mustang V6 ~ Wife's ride American Born, Country by the Grace of God 1967 CST Shop Truck Rebuild! My 1967 C-10 Build Thread My Vintage Air A/C Install Project "On a Dime" Trying my hand at Home Renovation! 1965 Mustang Modifications!

10-30-2017, 03:40 PM	#5
Jeff's bowtie's Senior Member Join Date: Jan 2015 Location: Kearneysville Wv Posts: 3,938	Re: Switching from 3OTT to automatic I have two cross members if your interested here's a pic off one thanks Attached Images



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