hey I'm hoping some one could help me. My 1988 f350 7.3 idi just has a new flywheel and clutch put in. I went from a 11" to a 12" and now when I'm driving and coming to a stop it has a very harsh vibration when only when I use the breaks. It can't be drive line because it's worse when I come to a complete stop and still keep my foot on the break. I can be completely stopped and the vibration won't go away even after releasing the break untell I put it in gear and start moving again. Please help!

 

Has to be associated with the new clutch. Does having the clutch engaged / disengaged have any effect? Nothing on the brake system can cause the engine to run different than normal.

 

!!! POST NO BILLS !!!

 

Did you go from a DMF (Dual Mass Flywheel) to a solid flywheel?
If so, the ZF5 transmission is well known to be noisy with a solid flywheel.

 

I have a solid and I get a lot of gear roll over but I don't really feel the engine running any different. I.e. Shaking, rough idle, surging. Just the gear roll over noise. Interesting to see what exactly the problem is but I agree it has to be something with the clutch.

 

The clutch is not fully releasing. Could be the throwout bearing The enginge is trying to stall, becsuse it is still in gear.

What happen if you put it in neutral at a stop?

 

It goes away only when it’s in gear and the clutch is peddle is out. Any other time I can hear it no matter what I’m doing if it in nutral or if the clutch is pushed in . It seem to be worse if on an up hill but I can hear it when turning right or on a down hill too. Could there be **** loose in my tranny because when I have the clutch pushed in and go over a bump at the right speed it sounds like the gears jump in my zf5. I should ask say it’s more like a rubbing/vibration feeling. Motor runs the same and isn’t bogging down