[V8] '93 Acceleration Vibration (update)

[Samuel Mrowka]

Here's my original message (for reference):

"There's a pretty crazy shake throughout the car when accelerating
(steady speed
is normal). Got the car up on 4 jack stands, got a buddy to gun the throttle
several times, but the rear-end is totally fine. Put the E-brake on so only
the front wheels were spinning, and I get the same vibration. Axles and CV
joints look normal, engine and tranny mounts are fine...what the heck?"

The car in question is a V8 originally belonging to Mr. John Jones, which
my girlfriend has been driving.

I was about to pull the engine on this car to determine the source of the
vibration. But, when I removed the subframe, I found both transmission
mounts were broken on top. I replaced them with some spares, but they've
since broken again. Somehow, it seems like an otherwise functional
transmission is perpetually breaking its mounts.

Interestingly, over the Labor Day weekend I helped my girlfriend
relocate from Syracuse to Seattle. We drove the car 3,000 miles on I-90 and
the car performed well (despite the transmission vibration and oil
consumption).

Still a bit stumped. I'm going to take another look this winter when I
replace the stem seals.

Samuel