Rotational grinding when braking??

[81jimmyslt]

When I brake hard I get a horrible rotational grinding noise, the harder I brake the louder and harder it grinds. I have a NP 208. There is another post I replied on about grinding when deccelerating, this is related but my truck is undrivable so I made another post. I moved the axle back 1.5" because the driveshaft was to long, I thought the grinding was when I was braking hard and the shaft was bottoming out. Still grinds like crazy but my slip yoke driveline output looks perfect now. It was also suggested to lower my tcase again, but I don't think that will fix it.

Any Ideas?

Thanks
Jesse

 

[dave_90_blazer]

When I brake hard I get a horrible rotational grinding noise, the harder I brake the louder and harder it grinds. I have a NP 208. There is another post I replied on about grinding when deccelerating, this is related but my truck is undrivable so I made another post. I moved the axle back 1.5" because the driveshaft was to long, I thought the grinding was when I was braking hard and the shaft was bottoming out. Still grinds like crazy but my slip yoke driveline output looks perfect now. It was also suggested to lower my tcase again, but I don't think that will fix it.

Any Ideas?

Thanks
Jesse

are your brakes ok?

 

[81jimmyslt]

Brakes are fine it sounds and feels like the t-case.

 

[81jimmyslt]

Bump, and no my rear pinion nut is not loose.