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Re: [Fot] AN hardware and halfshafts

To: Scott Janzen <s.janzen@comcast.net>
Subject: Re: [Fot] AN hardware and halfshafts
From: "J.C. Hassall" <jhassall@blacksburg.net>
Date: Sat, 17 Oct 2009 14:10:58 -0400
On 10/17/2009 11:42 AM, Scott Janzen wrote:
> My GT 6, with a welded diff, has the halfshaft u-joints bolted to it
> with AN6 hardware.  I was checking out various things under the car
> two events ago and noticed that all of the bolts/nyloc nuts were about
> 1/8-1/4 turn loose.  I tightened them up, but after the next event
> they were about one flat loose again.  There's no way to get a torque
> wrench at these, given the proximity to the diff and the u joint on
> the other end of the bolts, so I just give them a good yank with hand
> wrenches.
>
>    
Scott, I used AN363 stop nuts and AN960 flat washers.  I don't know the 
washer hardness but they've held up nicely.  The stop nuts likewise have 
never given me any problems.  Check www.aircraftspruce.com.

hth

jim
> Question - are these stretching, working loose (with nyloc), or are
> the AN washers, which I find to be fairly soft, compressing?  I really
> lean on the wrenches, so I am amazed the nuts are loosening.  I know
> the welded diff puts a lot of stress on the system, but none of the
> hardware on the outer u joints or the drive shaft, all of which have
> smaller hardware, is loosening, and the events I'm talking about are
> only hillclimbs - not a lot of driving time at all.

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