2000 f150 182000 makes a rumbling noise from rear end mainly when turning at slow speeds. Thought it might of been axle bearings so replaced them this weekend to no avail. I have the 9.75 limited slip rear end but what i found out this weekend is that the axle bearings are for 8.8 , the 9.75 bearings was to big. So does this mean I have 9.75 ring gear with 8.8 axles ? I have been using royal purple 75-140 with no friction modifier because royal purple says its it there. But after doing some research Im going to go get some friction modifier and see if it helps . So my question is how much of a pain is it to replace the clutch packs? what if i wanted to just put a different differential in and do away with limited slip ? Or go with a different aftermarket limited slip diff. ? what are my options , etc. Thank you in advance.

 

Moved to 07'-03' section.

 

where ? why?

 

Oops.Type-o.

97' to 03' section: https://www.f150forum.com/f6/

For questions/ discussion specific to those year trucks.

If you would perfer the general discussion section, I'lll put it back.

 

Subd mine does the same thing