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  #1 (permalink)  
Old June 13th, 2008, 08:47 AM
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OOPS broken intemediate shaft

Last year after a car show I was on my way home when my 4 year old asked me to hit it after a stop signs. I gave it about 3/4 throttle and the snap... the car rolled to a stop. Luckily I was only a block from the house and the wife used her minivan to pull me home. Took out the trans and sent it to a buddy to rebuild it. Here are a few pictures of what happened. This one was built in Texas.

I bought another trans while this one is being rebuilt, Brian Hofer built.
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Old June 13th, 2008, 09:02 AM
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I lost count how many times I did that. Until I finally replaced it with a billet piece. Try as I may, I haven't been able to break the billet shaft.
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Old June 13th, 2008, 09:22 AM
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That's not a stock drum. Looks like a reworked stocker? There's welding around the base of the spline. I wonder whose drum that is?
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Old June 13th, 2008, 09:24 AM
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Sure makes me cringe to read that someone's trying to break a trans.
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Old June 13th, 2008, 10:35 AM
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Originally Posted by DonWG View Post
Sure makes me cringe to read that someone's trying to break a trans.
I wasn't "really" trying to break it. It's just that it held up for all those years of hard racing out there in southern KA.
Still going strong.
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Old June 13th, 2008, 11:28 AM
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looks like someone welded it up .i cant see that being good no matter how its done.
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Old June 13th, 2008, 03:16 PM
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Quote:
Originally Posted by chris718 View Post
looks like someone welded it up .i cant see that being good no matter how its done.
It came from a shop in Richmond, TX.
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Best run 11.621 at 121MPH
86 T Top GN, TA49, 60's, Champion ported iron heads, Champion ported stock intake, Vigilante 3200 5 disc "O" pump lock up converter. Brian Hofer trans. T&D roller rocker and Comp roller cam
Alky Control.
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Old June 13th, 2008, 03:17 PM
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What are the "correct" names for those two parts?
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Best run 11.621 at 121MPH
86 T Top GN, TA49, 60's, Champion ported iron heads, Champion ported stock intake, Vigilante 3200 5 disc "O" pump lock up converter. Brian Hofer trans. T&D roller rocker and Comp roller cam
Alky Control.
http://community.webshots.com/user/jpratt725
http://www.fquick.com/8uwav6
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Old June 13th, 2008, 04:25 PM
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The piece that broke

Is the forward drum shaft. I have welded many without any failures. I believe that the type of weld is the difference. I wire weld mine which produces much less heat as compared to heli-arc welding them which is what that one has had done to it. Go ahead, I got my suit on. I'm not saying it takes the place of a billet piece but IMO is better than stock.
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Old June 13th, 2008, 06:28 PM
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Quote:
Originally Posted by chris718 View Post
looks like someone welded it up .i cant see that being good no matter how its done.

I agree with Chris. The metallurgy and heat treatment is very, very critical at the location. Too hard to control by welding like that. Not to mention trying to control stress risers after the welding.

We played around with that with Neals car and it didn't make it past the first test drive. Granted we were not at all careful with filler rod material, heat and procedure. Just playing around. But it did show us how critical it was.
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Last edited by DonWG : June 13th, 2008 at 06:39 PM.
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Old June 13th, 2008, 06:41 PM
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I wasn't "really" trying to break it. It's just that it held up for all those years of hard racing out there in southern KA.
Still going strong.
I know Dave. Just busting balls.
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