Hopefully this is where I should post this.
I am kind of at my witts end.
My 2005 4.6 manual makes a loud metallic clank when shifting especially at low rpm shifts. Clutch works perfect, transmission upshifts and downshifts perfect. Clutch has been replaced with stock components and has about 30K on it. The car has 155K on it and I don't know all the history so I can assume the rear end and 3650 have the 155K on them. I have replaced the 2 piece driveline with a FRPP 1 piece. I have also changed the rear LCAs with GT 500 pieces. I switched out the diff fluid and went with Lucas dino.
The noise seems to be coming from the bell housing area and can be avoided with a high rpm shift or a perfect low rpm shift. The rear end does not howl or do anything weird when cornering. The transmission does make a growl at extremely low rpm when accelerating but goes away immediately.
The noise is not repeatable by getting on and off the gas abruptly as if there was too much play in the system somewhere.
Here is the weird part. Sometimes the car shifts perfect with zero noise or clanking and it is not because I am shifting it better. The shifter even feels different when it does this.
What could change to make that happen?
My thought is it is the transmission input shaft components are worn which is causing the low growl at lower rpms. I only think this because the clank sounds like it is coming from the bell housing area. But if that is it why would that change at times? Could it be some part of the clutch system even though it works perfect? Broken clutch disc spring?
Please Help!
I am kind of at my witts end.
My 2005 4.6 manual makes a loud metallic clank when shifting especially at low rpm shifts. Clutch works perfect, transmission upshifts and downshifts perfect. Clutch has been replaced with stock components and has about 30K on it. The car has 155K on it and I don't know all the history so I can assume the rear end and 3650 have the 155K on them. I have replaced the 2 piece driveline with a FRPP 1 piece. I have also changed the rear LCAs with GT 500 pieces. I switched out the diff fluid and went with Lucas dino.
The noise seems to be coming from the bell housing area and can be avoided with a high rpm shift or a perfect low rpm shift. The rear end does not howl or do anything weird when cornering. The transmission does make a growl at extremely low rpm when accelerating but goes away immediately.
The noise is not repeatable by getting on and off the gas abruptly as if there was too much play in the system somewhere.
Here is the weird part. Sometimes the car shifts perfect with zero noise or clanking and it is not because I am shifting it better. The shifter even feels different when it does this.
What could change to make that happen?
My thought is it is the transmission input shaft components are worn which is causing the low growl at lower rpms. I only think this because the clank sounds like it is coming from the bell housing area. But if that is it why would that change at times? Could it be some part of the clutch system even though it works perfect? Broken clutch disc spring?
Please Help!
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