'89 rrc brake question

[Snagger]

Is this for non abs? Mine does not have abs.

Non ABS - the ABS system has a completely different set up with the biasing don internally in the main pressure unit, with separate outputs to each wheel already pressure controlled for biasing but also the ABS and ETC. It also has two separate brake lines to the rear, rather than sharing one pipe and splitting at the rear axle, as per the non-ABS system.