Possible Transmission problem

[n00b240]

So I was driving back to Dallas, Texas from Chicago, Illinois. Cruisin down the freeway at many points for an hour maybe more for a total of possibly 5 hours of 100mph driving. At some point during my final leg I kicked it up and had been cruisin at 100mph for about an hour at which point, something happened...

It was like something was cut out and I couldnt accelerate at all under even a lil bit of throttle. I soon found out that once I slowed down to 60 I could give some throttle, but could not accelerate past 77mph or 3500rpm's without the car shaking.

However in all other gears this is not an issue, as I can rev all the way up to the red line with no problem.

Anyone got any ideas as to what might have happened? And is this something I can fix myself? Ive searched a bit and Im a bit confused on what may have happened as my issue seems slighty different than others in older posts.

Thanks in advance.
Modified by n00b240 at 6:51 PM 8/2/2008

[drugsbunny666]

Sounds like something happend to your driveshaft. I had a similar problem.

[n00b240]

Did you get it fixed? And if so how much did it cost you for the parts?

[drugsbunny666]

60 bucks to balance the shaft and another 130 for a new yolk and u joint. But if i were u i would jack the car up and put it on stands and check out the problem for yourself most likely the driveshaft.

[n00b240]

Alright thanks alot

[nismoracingsx]

a 77mph+ shake?? Must be rare. Most driveshaft shakes show up at a bit slower speeds. What motor are you running to be ragging the poor 240 for 5 hours of 100+ mph driving?

[n00b240]

Lately I havent been doing any highway driving so I never get up to even 60mph, so this problem of not being able to go faster than 77mph or 3500rpms in 5th gear is a non issue.

Ive got the KA24de in rebuilt bone stock form. Rebuild happened bout 7 months back.

I havent had a chance to jack it up just yet