Would anyone have an idea why the rear right brake line is larger (according to RAVE, for a Disco 1 with ABS. It would also mean different tubing size when rebuilding. The fitting on the ABS module does indeed look larger. Thanks for your input
(Page 596 of873 of disco workshop manual, brake pipe layout ABS)

 

For additional fluid and pressure.

 

Changed. Piping was same size but not the fittings. Probably to prevent crossing over from left to right.