That would be your "plunge". As the wheel moves up and down, the distance
between the inner and outer joints changes. the CV joints allow the axle to
move in and out to take up this plunging action.

In other words, it's normal.

Brian


> wrote in message
oups.com...
> While doing some other work on my car, I noticed that there was play in
> in my halfshaft. I could grab the part between two of the accodian
> looking boots and could move it back and fourth (towards either boot).
> Is this normal? Does it make it bad? The boots themselves look fine
> (not torn). Usually threads about halfshafts/CV boots reference torn
> boots, but mine look fine. The car has 113,000 miles on it..
>