Hey guys the tool worked great , after I destroyed 5 seals trying to install with whatever I had that somewhat fit the seal and housing... I came across this co. " Torque Kings 4X4 " This is the only place that found the seal installation tool for my 1990 Jeep (xj) Cherokee Dana 30 . There was only problem with the tool it needs 1 more nut included in the kit to double nut the threaded rod on the outside end , to keep the threaded rod from turning while installing the seal . After all that said this is a must have tool it works worth every dime .... Thanks Randy D.