Step up and buy the proper fasteners for the prop shaft. It will seem cheap
after you use the wrong ones, get aggravated by the vibration and crawl
under there to put the right ones in.
On Thu, Aug 20, 2009 at 5:51 PM, Randall <tr3driver@ca.rr.com> wrote:
> > How important is it to get bolts with the exact
> > unthreaded shank length?
>
> I believe it's rather important. As Bob noted, in some cases the shank
> diameter is important as well. Most of them are available from the usual
> suspects.
>
> > Thinking mainly of the driveshaft flange bolts and rear
> > backing plate/axle attachment bolts.
>
> Driveshaft flange 107960, $2.75/ea @ TRF.
> Later axle 112653, $1.85/ea @ TRF.
>
> > Am I missing
> > something here or all they all considered "fine" and vary by
> > size of bolt.
>
> NF (National Fine) specifies a different thread pitch for almost every
> different diameter (just as NC is different pitch for almost every
> diameter). The common NF bolts on a TR3 (which I assume applies to a TR2
> as
> well) are:
> 10-32
> 1/4-28
> 5/16-24
> 3/8-24
> 7/16-20
> 1/2-20
> 9/16-18
>
> -- Randall
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