Hello I have a 1960 C60 viking with a 2 speed rear end my problem is the rear brakes wheel cylinders are leaking I have replaced on side with no problem but the othe side there is a steel line that connects the 2 wheel cylinders started leaking and thinking no big deal I tossed the line and befor I realized how much trouble it would be to find a relacement the old is gone and the new will not screw in because of the diffrent thread pitch and I can not find the correct thread pitch can anyone help