weird noise when I accelerate

I have a 2010 Tundra with 127000 miles. So far, a great truck. All stock factory set up. Lately, when I coast for awhile then re-accelerate there is a noise that sounds like I ran over a rumble strip or the center-line raised pavement makers. It's a quick, one-second rattle.
My service mechanic test drove it and heard the same sound and I have had another mechanic drive it and heard it as well. Service guy thinks it is in the tranny or torque converter. I talked to the recommended transmission shop and they said it's a $3000 problem and they have seen it before.
Does anyone out there know what is going on?
Thanks for the help.
Jim

 

u-joints?

I had the u-joints go out on my Tacoma and it made a quick vibration and noise on takeoff like you are describing.

EDIT:
or maybe the carrier bearing? I had that go out on my Tacoma as well.

replacing the carrier bearing and u-joints made all the difference.

 

I was thinking that might be it. Or something in the drive-line area.

 

yeah, check the u-joints and the carrier bearing before looking at the transmission. they are way cheaper to fix. hell, at 127k miles, you wouldn't be wasting money by replacing them prematurely.

 

Sounds like a good idea anyway. I tow a boat and a travel trailer. the travel trailer is pretty heavy.

 

oh yeah, if you regularly tow, it would be worth replacing them especially since you are experiencing (what sounds like) some drive-line issues.

on my Tacoma, if I remember correctly, the carrier bearing was $250 and the u-joints were $100 to replace. might be a little more for the tundra?

 

But did he share what it was, if not, I might be hesitant to believe him.....

 

Before you do anything, I would make sure your tires are balanced. It would be a cheap fix if it's the issue. I had an issue where if I was in the speed range of about 29mph to 40 ish mph and accelerating, it would shake like I'm going over those strips they put on the road before a stop sign. I could easily get out of the shake by giving more gas and having it drop a gear. I just put on new tires and the shake has completely disappeared, at every mph no matter the gear. Figured it's better to try the cheap fixes before dropping a lot on something that might not be the issue.

 

Amazing how every transmission shop when given the opportunity comes up with a $3000.00 fix to ANY rattle, sound, or any other question that a potential Unsuspecting Customer might have at their "trust worthy" and "reputable" shops.

 

I agree. Heavy towing is tough on the weakest links in the drivetrane. Id start there along with a tire rotate and balance.