Noisey transmission

[Rider Eh!]

Hey everyone,

So this 03 V6 TRD Taco I picked up seems to have a noisey 1st, 2nd, 3rd, and 5th gear. I'm just wondering if anyone has any experience with this. From what I've read googling, it may be the input bearing. I've also read guys have had complete tranny rebuilds and the noise never went away. The fluid was recently changed to Mobil 1 synthetic. It's more of an irritant to the ears than anything, and annoying knowing it's there. I was wondering if any of the members had any advice, thoughts, or possible fixes. Right now my thought is wait until the clutch goes, and replace the input bearing at that time. How many km's can you usaully get out of a oem clutch? I'm at 140k km's now.

Thanks!

[canadian bum]

Sounds like the counterbalance shaft bearings are bad. Since all the gears you mentioned send power through that shaft it makes sense that it makes noise under load. Where as 4th is a direct drive through the input shaft and main shaft.

[Rider Eh!]

Meaning, drive it until it lets go and put a new transmission in, or is this worth the cost to repair? I'm guessing if the bearings are going, the gears will see abnormal wear as well.

[canadian bum]

Well I wouldn't do that. The gears should still be fine depending on how long you have been driving with the tranny like this. If you drive it till it goes its really going to be a mess and could be dangerous if the tranny locks right up. And most likely will damage other components.

[Winch]

Hey everyone,

From what I've read googling, it may be the input bearing. I've also read guys have had complete tranny rebuilds and the noise never went away.

The classical symptom of a noisy input bearing is actually at idle when you have the tranny in neutral, and it makes a noise when you release the clutch pedal (input shaft and bearing is spinning, but nothing else in the tranny) and the noise stops when you press the clutch pedal (and the input shaft and bearing is not spinning). This is very common in the R150F's (including mine) and isn't a big issue, but it sounds as if you are having other issues (like what Canadian bum said).

[Rider Eh!]

Yeah this is definately in all gears but 4th. From what I've found in other posts, some people have had this as soon as 30k miles on their trucks. I'm hesitant to send it off for a rebuild as the noise may not go away, which is what some people have found. One guy also said it was due to a misalignment from machining in housings, so the only fix was a whole new transmission or housing. It seems most people just get use to the noise and let it be. I think I may do the same unless it gets worse, though the noise can be a bit irritating, specially knowing that there is a bit of a prolem. I think I'd rather insert a reman transmission than go for a rebuild. I thought about pulling a low mileage one from a wrecker, but I guess you don't know if it will have the same noise.