> 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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