i will pull the diff out and take pics so you can see what i mean as for wheel nuts coming off dont use alloy nuts with nylock thay are crap i use nuts with out nylock but the face has a washer built on the end with a seration on them and they never come off they actauly bite onto the wheel alot of people use them in nitro racing and thats where i got the idea from they cost around $8 for 4 well worth it i will get the name of the product for you when i get home again along with pics of the diff mate