You wrote:

"The warp on them is barely noticeable compared to the new ones!"

I take that to mean the warp is still there even with the old drums.

BenT

On Tue, Jul 27, 2010 at 11:20 AM, Shawn Wright <vwdiesels@gmail.com> wrote:

>  On Tue, Jul 27, 2010 at 10:50 AM, BenT Syncro <syncro@gmail.com> wrote:
>
>  Most drums warp in the middle where it touches the hub. It would take too
>> much machine work to chase that. Checked that area to see if there is any
>> warpage there.
>>
>
> I wondered about that, as the metal is very thin there, but I thought the
> wheel clamping it to the hub would take care of things. I imagine warpage
> here could wreak havoc with the lathe though? Still not sure I want to try
> machining these crappy things, so I've contacted AutohausAZ about a return.
>
>
>>
>> Sometimes it's not the drum or the hub. A bad rear bearing can cause the
>> hub to wobble and make it feel like a warped drum. With the rear wheels off
>> the ground, try to move side to side and check for free play. If it wobbles
>> by hand, it can pulse when you drive.
>>
>
> Bearings are ok, and the problem goes away with the old drums back on...
>
>
>>
>>
> --
> Shawn Wright
>
>

--
BenT