Transmission noise in drive gear, please help

[Ray Bennett]

My Trans is making a sound that sounds like tire noise in Drive gear only from 1600 to 1900 rpms, it does not make the noise in first, second or OD, anyone have any idea what this may be, It sounds just like a tire hum that big mud tires make. I thought it was tire noise but then realized it goes away as soon as the truck goes in to OD. The truck shifts fine and feels tight. The trans was rebuilt completly with billet torque converter transgo shift kit and suncoast 5 disk drum 15k ago. I am running 37 inch tires, but they dont make much road noise. Any help would be appricated.

[Ray Bennett]

anyone avail to give a suggestoin?

[Turbostang500]

This might piss you off because it is off topic but I just read your sig and I think you should do an exhaust next! lol

On a serious note, it sounds like somthing out of balance internal. If you had a shop do your rebuild then I think I would be contacting them fairly quickly and seeing what they have to say. I don't know the inside of these trans but have seen a few other ford trans. I think the 2 clutches used for 3rd gear is the input clutch and the direct clutch which both should be responsible for other gears as well. Input clutch is for all forward gears. The direct clutch should be for 3rd and reverse. If you are having a problem with only 3rd gear then I don't think it would be a clutch problem.

I don't know the inside of this trans though som what I have said shouldn't be taken as fact! only trying to maybe get the topic going a little.

[Ray Bennett]

Originally Posted by Turbostang500

This might piss you off because it is off topic but I just read your sig and I think you should do an exhaust next! lol

On a serious note, it sounds like somthing out of balance internal. If you had a shop do your rebuild then I think I would be contacting them fairly quickly and seeing what they have to say. I don't know the inside of these trans but have seen a few other ford trans. I think the 2 clutches used for 3rd gear is the input clutch and the direct clutch which both should be responsible for other gears as well. Input clutch is for all forward gears. The direct clutch should be for 3rd and reverse. If you are having a problem with only 3rd gear then I don't think it would be a clutch problem.

I don't know the inside of this trans though som what I have said shouldn't be taken as fact! only trying to maybe get the topic going a little.

I allready called the shop and they are going to look at it wednesday, Im not driving it till then, Dont want somthing to go through my 900 dollar Torque converter. They did say over the phone they have never heard of this so I was hoping someone on here would have.

As for what is next , I think you are right on, I was about to order an exhaust when this problem started, If its not a costly fix then Consider it done, I have not decided on 4 or 5 inch, that will be my next question, which sounds better?

[Turbostang500]

Well, I hope the trans guys can get ya figured out.

The exhaust, I am in the same debate. I crawled under a buddies 7.3 with 5" exhaust and it doesnt leave much room under there! I like the look of 5" but not sure if I want to hassle with it and I have heard the drone can be unbearable. I will probably go 4" and a nice 6" tip.

You at least need a tip to match the size of your tires! Looks like you have a gasser exhaust on that thing! Lol No offense! All in good humor.

[Macon]

I don't know about the tranny issue, but my exhaust is 4" to the back of the cab, then 5" out. Sounds fine, though I have put thought into a high-flow muffler to change the sound a little.