Baseball-card-in-spokes sound?

[Bombadier]

this is another thing that i wonder about. if i'm at a complete stop, and i boot the accelerator, a weird sound as described above emanates from somewhere's underneath my truck. sounds like its coming from the front end. the minute i let off the gas slightly, or continue to accelerate for a second or two, the sound goes away. it only does this if i really step on it from a complete stop. but my acceleration corresponds correctly to the amount of gas i'm giving it, so it doesn't seem to be gear slippage, or could i be wrong? i checked my diff oil very recently, and i found no metal flakes or detrius.
but yeah, it sounds almost exactly like a baseball-card-in-spokes.

[jasonthomasfrance]

Exhaust leak that only agrees at higher RPMs?

[porkchop]

Also could be a broken flexplate or loose torq conv. bolts. Is it more metal sounding or just more of a tick? If it is more of a ticking then I would have to agree with Jason.

[Millerluck]

How's the motor mounts?

My fan was hitting the shroud as the motor lifted from it ripped mounts. Making a flapping sound.

Turning left and mashing it made it realy do it.

Later

Larry Miller

[ June 02, 2002: Message edited by: Millerluck ]</p>

[freak]

my 89 was making the same sound...just fixed it today, my transmission was separating from my motor, i tightened the bolts (which by the way is no easy feat in the dirt with a box wrench) no i am good no more baseball card in the spokes...

[Gargel-orum]

Joel- you sure thats not just that pinhole in your y-pipe?

[Stolen76]

I have the same thing happening in my little rice-grinder. I had just done a brake job, turns out, the backing plate for the pad is slightly larger then the ones I had replaced. The disc pad was contacting the wheel. Ground the corner down some and the noise went away

[Bombadier]

it's definately a metal-to-metal kind of sound. I just had my manifold leak fixed, and i got well aquainted with that particular sound. i had a bad thought today. QT chain skipping teeth???

I've re-created the sound w/ my hubs both locked and unlocked, and there's no real change in the truck's performance either way. just that sound for a second when i step on it. My motor mounts are solid, the engine doesn't move at all.
lol, my brakes are prolly shot since they were squeaking when i got the Jeep, and now they don't.
My tranny pan is kinda banged up, but like i said, the sound seems like its coming from up front or around the T-case.
keep the ideas coming, i'll get this thing licked somehow.

[JBurke]

I have the same kind of sound but mine is only when i apply the brakes...i thought it might be some loose center caps on my wheel, so i took them off today...turned out it was a part of the brake caliper hitting the balencing weights on the inside of my wheels...tore a groove right through them.

anyway doesn't sound exatly like the same symptoms, but maybe that will lead you in some direction towrad a solution. good luck...