[DeTomaso] Half Shaft Safety Hoop

[Tomas Gunnarsson]

Tom,

Jack didn't say that the shafts break in the middle. He said that when a joint breaks the shaft extends at the sliding joint (in the middle of the shaft).

Tomas

----- Original Message ----- 
From: "Thomas Borcich" <tborcich at msn.com>
To: "Pantera Larry Ohio time corp" <larry at ohiotimecorp.com>; "Pantera REALBIG forum" <detomaso at realbig.com>
Sent: Tuesday, December 08, 2009 5:46 PM
Subject: Re: [DeTomaso] Half Shaft Safety Hoop


> Larry, that was one of my thoughts. The one thought I have with that is the hole in the wheel house is half way up the half shaft which still leaves a fair amount of leverage from a flailing halfshaft and the opening is quite large still leaving quite a bit of room for half shaft movement. Art Stevens as we speak is doing something like what you are suggesting, so I need to go by and take a look at what he's doing. 
> 
> One of my fabricators ideas was to bring a hoop right above the frame rail with just enough clearance to give the half shaft the necessary range of motion. 
> 
> Jack brought up a scenario that I had not realized...the shaft breaking in the middle, not on the ends. I assumed that they broke at the universals.  That makes me think that a reinforcement band around the half shaft at the base of the threads with a few tack welds to hold it in place might give some added insurance and lessen the need for a hoop.  Thoughts?
> 
> Tom
> 
> 
>> From: larry at ohiotimecorp.com
>> To: tborcich at msn.com; detomaso at realbig.com
>> Subject: RE: [DeTomaso] Half Shaft Safety Hoop
>> Date: Tue, 8 Dec 2009 09:13:09 -0500
>> 
>> Thomas,
>> 
>> Now that you are having the wheel house repaired. What about just
>> reinforcing the drive shaft opening? I would think 1/2" bar stock around the
>> opening would keep the drive shaft in place should it break again.
>> 
>> Larry - Cleveland
>> 
>> -----Original Message-----
>> From: detomaso-bounces at realbig.com [mailto:detomaso-bounces at realbig.com] On
>> Behalf Of Thomas Borcich
>> Sent: Monday, December 07, 2009 11:05 PM
>> To: Pantera REALBIG forum
>> Subject: [DeTomaso] Half Shaft Safety Hoop
>> 
>> 
>> Not sure how many of you have had a half shafts break, but both of mine did
>> at one point of the cars life. Both of mine broke at the inboard universal
>> which can do quite a bit of damage depending on the speed when they break.
>> On the inboard half shaft they keep flailing around until the cars stops. If
>> you break an outboard universal all you do is put the clutch in and all the
>> beating stops. Many dragstrip cars have drive shaft hoops so if they break a
>> universal they don't have drive shaft flailing around, it is contained in a
>> steel loop.
>> 
>> Since my wheel house repair is almost complete, I'm thinking about putting a
>> half shaft safety hoop of some sort to contain the half shafts is they break
>> again.  Has anyone else done something similar?
>> 
>> Best regards,
>> 
>> 
>> 
>> Tom
>> 
>>       
>> _______________________________________________
>> 
>> Detomaso Forum Managed by POCA
>> 
>> Archive Search Engine Now Available at http://www.realbig.com/detomaso/
>> 
>> DeTomaso mailing list
>> DeTomaso at list.realbig.com
>> http://list.realbig.com/mailman/listinfo/detomaso
>> 
>       
> _______________________________________________
> 
> Detomaso Forum Managed by POCA
> 
> Archive Search Engine Now Available at http://www.realbig.com/detomaso/
> 
> DeTomaso mailing list
> DeTomaso at list.realbig.com
> http://list.realbig.com/mailman/listinfo/detomaso