Hi Dave,
No, these look
like small roof nails, about 3/16 stem, about 3/8 head
(guess) ; they fit into holes drilled in center of
“thrust block” in middle of differential( see shop
drawing in book); they make a bearing for the end of
axle , when it pushes inwards (the two axles do not
always turn same speed); when you adjust shim pack,
you push axle against this nail head , through wheel
bearing/shim , and thrust block ,(can move sideways)
to other axle ; both axles can move side to side, I
think it is .013 free play. Or else timkens are not
opposed and set up right, supposed to be like front
wheel bearing. . So you set this up from one side.
You pull an
axle, the head of the nail momentarily sticks to end,
pulls it out of its hole, as you move axle out away
from block ,it then drops off . when you put back ,
you are missing maybe .100 of stuff, you cannot get
lash out ; guys remove all the shims, find it still
not right .Cannot be reduced enough to work to the
.013, even with no shims at all. So if not aware of
all this, they button it up with no shims, you are
screwed very shortly. Axles loose side to side, will
move up and down too.
You can see
them if you shine a light down axle tube with axle
out. If you see a small hole instead in a rectangular
metal block they are gone ; some of them have I think
holes in them (in the head) too, but you then see
“head of nail” with hole in it (that tiny hole is how
you can replace them on end of weld wire ,if patient
and steady hand).
Are you
referring to the keys located in the tapered end
of axle, in the groove?
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