Driveline vibration

Hey guys. New tacoma owner here.got a 2013 4 door 2x4 all stock 114k on it a 4.0 auto. Got a slight vibration at 30 to 35 and a significant vibration that fades out as i gain speed from a dead stop to 75/100% throttle and on a downshift 75/100% throttle from 3rd to 2nd......just replaced rearend gear oil, carrier bearing and u joint by the bearing.still doin the same thing.
Have these things had cronic tranny problems!?? I thought these were great trucks.thanks in add.

 

Maybe one of the other u-joints?
Hate to ask, but is there mud/snow/ice in your wheels?

 

If it’s a vibration similar to an electric shaver in your hand on the steering wheel.. maybe around 2,000RPM.. it’s a typical issue that hasn’t really been diagnosed to my knowledge. Many people have thrown $$$ at it and time and have yielded no results. Found ultimately to not be a threat to the longevity of the truck.

If not what I said above, then continue diagnosing.

 

Naw nothing in wheels. I figured one of the other u joints front and rear or tranny mount.i just looked at the tranny mount and i can move the tranny w 2 hands on the driveshaft but its not broke or anything.did a little research and they do it usually when lifted but like i said im stock 2x4....if i rev in nuetral to around 2k i feel a vibration also.

 

You’re feeling the vibration through the truck but not centralized in the steering wheel?

 

Naw its in the driveline.feels like it is mid to rear of the truck. But i did like i said above get a vibration in nuetral at 2 k.could feel it in the shifter and my elbow on the console.

 

Ya nothing in the steering wheel.fells like mid ot rear of the truck

 

Just put 2 brand new tires on the back also and fronts are allmost new

 

Perhaps try re greasing the u joints?

 

I just put one in last weekend behind the carrier bearing...the factory ones dont have a grease fitting so ima probably replace those other 2...front and back