Brake Line

Finally got my '94 Dodge Ram 1500 started....drove it out of the garage parked it and saw a very large pool of fluid under the rear axle. Found out that it's leaking brake fluid (alot!). I got on Autozone's site and they want to know the size of the brake line...3/16 1/4 3/8 5/16....it's the rear brake line for the drivers side....

Also...anyone know if the rear brakes are drums on this year?

Thanks

Should make this a little more clear...I had a guy just briefly look at it and he said it's the 'T' Block (Line Block) for the rear brakes. I can't seem to find this part at any local parts places...

Might have to take it to the dealer to get the T-fitting. I'd remove it from the vehicle so they can see what they're looking up.