Problem with 5th gear (manual)

Hi,
I'm new here and this is my first post 

I have Camry 2005. I bought 3 months ago. I had Echo 2001, with manual shift too.
The problem I have is shaking/vibrating shift stick while in 5th gear. I don't have the problem in any other gear but 5th. And, it's shaking ONLY when I pres gas pedal. Once I release gas pedal stick will stop vibrating.
Also, if I pull just a little bit the stick backwards it will stop vibrating too.
I don’t feel any other problem with car and it’s maybe more “annoying” thing then real problem 

I talked to 3 men they really know about cars and all of them told me the same thing: nothing serious but I have to fix that once I’m inspecting car. Specially while the car is under Warranty.

I was in the Service and guy said that it’s “normal” and nothing to be fixed. He took the car anyway, but after I picked up the car nothing changed. Same thing.

I had 10,000 miles inspection last weekend and requested to fix my shift problem. A supervisor was on the test ride with me and he told me that he don’t remember something like that before but never tried manual Camry too and he was “positive” that nothing’s wrong.
He took the car to the service but later on “explained” to me that it’s something normal and “regular”.

I can’t accept that because I didn’t have a problem with my manual Echo and never heard something like that is “normal”. Doeasn’t make a sense.

Did anybody have/had same problem?

I would appreciate for any opinion/suggestion.

Thanks.

-afan

Keep records and receipts from your previous inspections just in case this is a defect of some type and you can make a claim.

Does it do it in reverse?
Are you shifting into 5th at a speed that doesn't cause the engine to lug (or chug)?

There are nylon bushings in the shifting linkage that do fail over time (15 years was the earliest I've seen though), but you would notice it in all gears.

You're still under warranty. Try a different Toyota dealer!

It really is just an annoying thing not a serious issue. Believe me, we have people come into the dealership I work at here in town quite alot with the 2005 manual camry. All it amounts to is a vibration from the linkage to the tansmission in 5th gear. And until the hot shots at the Corporate Office release a recall to fix it, no matter what knid of warranty you have, no Toyota dealer will fix it. I wish they would let us fix it, but believe me, it is nothing serious and will not damage anything at all.