Does anyone know off hand the rear metal brake line fitting size for a 1994 2wd 300 six f-150. I was told each end has a different size fitting.

The metal line from the rubber hose at the rear diff to the jucktion box under the driver's side.

 

take old one out and measure length and fittings.

only way to do it right.

 

On the rear axle the dirvers side brake line need an adaptor to go into the rubber hose. I do not recall the size; but when you go to the store just ask to see a new hose and try to match up a fitting to go from the 3/16 brake line.