1996 Chevrolet 2500 - no brake fluid to the rear

Why am I not getting brake fluid to the rear brakes? I replaced the master cylinder, the power brake booster, a rear wheel cylinder and the junction block.

Bad brake hose? Pinched hard line? Corroded and blocked hard line? Incorrct bleeding technique? Pick the one you like. I can’t narrow it down with the little you posted.

I found a spot it was corroded in the middle but no fluid there either no pinched lines seems to not be coming out of the abs module

This may be incorrect procedure, but can you crack a line where the rear brake lines exit the abs module to confirm fluid isn’t exiting the module?

Anytime you replace a brake component ahead of the ABS pump, (ie master cylinder), it requires a scanner to bleed the brake system.

Tester