The Ford Barn - View Single Post - Loud Noise when car decellerates while i n first and second gears

rotorwrench · 09-14-2020, 11:02 AM

Decelerating is generally when the power train is unloaded and starts to push back the other way due to engine braking. Any thrust loading in the transmission changes from thrusting some aft to thrusting some forward. If it doesn't make the noise in high gear then that gives an indication that it may be something related to the cluster gear and the input shaft. Braking in high gear goes straight through the main shaft to the input shaft but braking in 2nd goes through the counter shaft cluster to the input and same with the 1st gear plus the change in any thrust loading that might exist there. Something is moving around more than it should.

If it was rear drive aft of the transmission then it should do the same thing in all three gears.

09-14-2020, 11:02 AM	#12
rotorwrench Senior Member Join Date: Jun 2010 Location: San Antonio, Texas Posts: 16,420	Re: Loud Noise when car decellerates while i n first and second gears Decelerating is generally when the power train is unloaded and starts to push back the other way due to engine braking. Any thrust loading in the transmission changes from thrusting some aft to thrusting some forward. If it doesn't make the noise in high gear then that gives an indication that it may be something related to the cluster gear and the input shaft. Braking in high gear goes straight through the main shaft to the input shaft but braking in 2nd goes through the counter shaft cluster to the input and same with the 1st gear plus the change in any thrust loading that might exist there. Something is moving around more than it should. If it was rear drive aft of the transmission then it should do the same thing in all three gears.