Aussie Locker Volvo Dana The Aussie Locker is an insert you fit into the existing differential housing that locks the wheels 100% when the gas is applied. With the help of this pre-tensioned insert, you can easily remove an old insert and this fits directly into the original housing. Fits : VOLVO 1030 1031 1041 Dana 30 27 10 ATTENTION ! Volvo 940 with gray differential housing has a different length of drive shafts and there the play needs to be checked so that it stays within the tolerances. (3.57mm-4.17mm) Included : 1x Aussie Locker insert 1x Manual (In Swedish) 1x Differential pin 1x Pin to tighten the insert