Need transmission help - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Mitzki5 · 05-12-2002, 03:09 PM

Have any of you ever had a problem with your auto trans linkage coming off. I have a th400 and the dang thing keeps coming off. The piece that rides on the shaft which is attached to frame keeps sliding off of the shaft. I unbolted the shaft bracket that attaches to frame and put some spacers behind the bracket thinking this would keep the other piece, which is attached to rod coming from steering column, from slipping off the end. No luck though. Has anyone else had this problem? I know this post is confusing but I don't have any pics. Thanks

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Mitzki5
69 GMC Shortbed
Central, Illinois

Longhorn Man · 05-12-2002, 03:21 PM

Look to see if your engine and tranny are mounted straight. It sounds to me like they are sittig a little crooked...like the front of the engine to the left, and the tail of the tranny to the right.
That's how the dope smokin old man installed mine. He actually welded the piece that turns the tranny 'finger', and made it a little longer.

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'69 G.M.C. 350/350. Trying to clean up the left over damage from the Dope-Smokin-Old-Man
I've been dubbed the Longhorn Freak/Fanatic/Expert, I just hope I can live up to it.
FINALLY got the HORNIAC...a '70 one ton Longhorn with a Pontiac 350/350 and lots of 'personality'. Check out The Longhorn Webite.
E-mail longhornmail@yahoo.com
My name is Andy...not Randy...I'm in Ohio...Not Illinois...close enough?
Columbus Ohio

Mitzki5 · 05-12-2002, 03:43 PM

Is it possible that the transmission mounts are wore or something. Because after I put the linkage together I try playing with it to see how it is coming loose but there is no way to get it loose. Then it ends up coming loose while driving. This last time the linkage got wedged between the trans and the shaft piece that attaches to frame. I had to pry trans over to get the linkage loose. Maybe trans is moving while I am driving, which allows linkage to come loose? I don't know, but it is real annoying. Thanks for any info you have.

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Mitzki5
69 GMC Shortbed
Central, Illinois

Duallie · 05-13-2002, 09:28 PM

You do have the cotter pin in the shift shaft at the transmission end of it, right?

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Just as if I knew what I was doin'

**MikeB** · 05-17-2002, 09:08 PM

Get a Kugel shift rod to replace all the sloppy factory linkage. http://www.shiftworks.com/kugel.htm

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MikeB
69 C-10 Fleetside, mild 383, Dart Iron Eagle heads, Crane Energizer 266 cam and 1.6 roller rockers, Edelbrock Performer manifold and 600cfm carb, HEI w/ MSD components, 1986 front spindles/disc brakes, Vintage Air in-dash.

*Zkast* · 05-17-2002, 09:15 PM

Double check your engine mounts and trans mount. If you have a bad engine mount it will cause the engine to raise up and over which would allow the linkage to slip out of the mounting hole. The Trans mount will have the same effect.

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Pictures and more...
Email me
'71 LWB
350/350T, PS/PB
Special options? Yes, RUST... Need some?

Garrett
Olathe, Kansas

05-12-2002, 03:09 PM	#1
Mitzki5 "TRUCKLESS" Join Date: Jan 2002 Location: Tuscola IL Posts: 457	Need transmission help Have any of you ever had a problem with your auto trans linkage coming off. I have a th400 and the dang thing keeps coming off. The piece that rides on the shaft which is attached to frame keeps sliding off of the shaft. I unbolted the shaft bracket that attaches to frame and put some spacers behind the bracket thinking this would keep the other piece, which is attached to rod coming from steering column, from slipping off the end. No luck though. Has anyone else had this problem? I know this post is confusing but I don't have any pics. Thanks ------------------ Mitzki5 69 GMC Shortbed Central, Illinois __________________ Mitzki5 No longer have an old truck! But always looking for another one!

05-12-2002, 03:43 PM	#3
Mitzki5 "TRUCKLESS" Join Date: Jan 2002 Location: Tuscola IL Posts: 457	Is it possible that the transmission mounts are wore or something. Because after I put the linkage together I try playing with it to see how it is coming loose but there is no way to get it loose. Then it ends up coming loose while driving. This last time the linkage got wedged between the trans and the shaft piece that attaches to frame. I had to pry trans over to get the linkage loose. Maybe trans is moving while I am driving, which allows linkage to come loose? I don't know, but it is real annoying. Thanks for any info you have. ------------------ Mitzki5 69 GMC Shortbed Central, Illinois __________________ Mitzki5 No longer have an old truck! But always looking for another one!

05-13-2002, 09:28 PM	#4
Duallie Registered User Join Date: Feb 2001 Location: Nikiski, Alaska Posts: 477	You do have the cotter pin in the shift shaft at the transmission end of it, right? ------------------ Just as if I knew what I was doin' __________________ Just as if I knew what I was doin'

05-17-2002, 09:08 PM	#5
MikeB Senior Member Join Date: Jul 2000 Location: North Texas Posts: 3,609	Get a Kugel shift rod to replace all the sloppy factory linkage. http://www.shiftworks.com/kugel.htm ------------------ MikeB 69 C-10 Fleetside, mild 383, Dart Iron Eagle heads, Crane Energizer 266 cam and 1.6 roller rockers, Edelbrock Performer manifold and 600cfm carb, HEI w/ MSD components, 1986 front spindles/disc brakes, Vintage Air in-dash. __________________ Mike 1969 C10 LWB -- owned for 36 years. 350/TH350, 3.08 posi, 1st Gen Vintage Air, recent AAW wiring harness, 5-lug conversion, 1985 spindles and brakes. 1982 C10 SWB -- sold 1981 C10 Silverado LWB -- sold, but wish I still had it! 1969 C10 (not the current one) that I bought in the early 1980s. Paid $1200; sold for $1500 a few years later. Just a hint at the appreciation that was coming. Retired as a factory automation products salesman. Worked part-time over the years for an engine builder and a classic car repair shop. Member here for 24 years! This is the very first car/truck Internet forum I joined. I still used a dial-up modem back then!

05-12-2002, 03:21 PM	#2
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,690	Look to see if your engine and tranny are mounted straight. It sounds to me like they are sittig a little crooked...like the front of the engine to the left, and the tail of the tranny to the right. That's how the dope smokin old man installed mine. He actually welded the piece that turns the tranny 'finger', and made it a little longer. ------------------ '69 G.M.C. 350/350. Trying to clean up the left over damage from the Dope-Smokin-Old-Man I've been dubbed the Longhorn Freak/Fanatic/Expert, I just hope I can live up to it. FINALLY got the HORNIAC...a '70 one ton Longhorn with a Pontiac 350/350 and lots of 'personality'. Check out The Longhorn Webite. E-mail longhornmail@yahoo.com My name is Andy...not Randy...I'm in Ohio...Not Illinois...close enough? Columbus Ohio

05-17-2002, 09:15 PM	#6
Zkast Account Suspended Join Date: May 2002 Location: Olathe, Kansas Posts: 929	Double check your engine mounts and trans mount. If you have a bad engine mount it will cause the engine to raise up and over which would allow the linkage to slip out of the mounting hole. The Trans mount will have the same effect. ------------------ Pictures and more... Email me '71 LWB 350/350T, PS/PB Special options? Yes, RUST... Need some? Garrett Olathe, Kansas



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