hello guys first time here im a current owner of a hellfire wich i bought used i went from a nitro sport to a hellfire my nitro sport had all types of hop ups at this time im thinking of changing my hellfire even thought i love how the truggy rides but it has given me so many headache the pins on the diferential keep coming out and i get a grinding noise ill be lucky if i get 3 tanks out of it .
does anybodie know about a upgrade for the diff or whats the trick so the pins woudlnt come out please help ????????????????????

Hi,

Do you mean the 4mm cross pins or the smaller ones that go through the diff cups?

Regards

Joaquim