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Old 03-14-2004, 09:56 AM
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two peice driveshaft rules

anyone know the nhra rules for 2 peice driveshafts, the rule book says nothing about it, it simply states that anything faster than 13.99 with slicks (e/t streets count as slicks at most tracks) must have a driveshaft safety loop, does a 2 peice need two fo them or do i have to switch it to a one peice driveshaft... they never bothered me before without even having one when i ran a 12.39, but that was only at the street legal stuff and they just basically checked to see if my battery was held down and that there was nothing in the passanger compartment and to make sure there was no fuel leaks, this year i'm going to be competeing in the points races and they do the full checklist and go right through the rule book... any help would be appreciated

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Old 03-14-2004, 11:50 AM
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Tho I never encountered the situation when I was a tech man. I would say that two loops (one at each slip joint or yoke) should be safe and would be allowed.
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Old 03-14-2004, 12:40 PM
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Cool

I would be asking the authorized tech people at the race track.

Not a helper guy, but a tech person in charge that when that person speaks people listen .


Years ago I was called on the carpet for my loop being 1 inch too far back from the U-joint after the car had been tech'd several different times.

I doubled up the loop on the front side and never was questioned again.


And I must say that is a very good question. I would think a second loop would be a good idea
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Old 03-14-2004, 01:43 PM
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the problem is our track doesn't open up untill may and there is no one to get a hold of for tech inspectors, i need to have it ready for the first points race and if i need a new one peice driveshaft i need some extra time to get one ready... anyway thanks for the help... but anyone else have any other idea's?
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Old 03-14-2004, 02:02 PM
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Sebd an email to the sanctioning body, I'm sure that they will pass it to whoever is in charge of tech.
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