This paper systematically tests the Homogeneous Propagation Framework's displacement-based gravity against the major weak-field observational benchmarks, ordered by the level of framework machinery each requires. It begins with pure time-dilation tests — Hafele-Keating clock transport and Pound-Rebka gravitational redshift — showing that the cumulative displacement Σ and kinematic factor λ reproduce the measured results, then moves to the Shapiro delay as an integrated propagation-cost effect along a signal path through displaced transport. Mercury's perihelion precession is recovered from the full effective coordinate-level line element via three contributions (retardation mismatch, time-dilation steering, and cumulative displacement gradient) that together yield 42.98 arcsec/century. Light deflection and the PPN γ = 1 result follow structurally from the symmetric modification of ε₀ and μ₀ by displacement, requiring no fitting. Lunar laser ranging provides multi-body consistency checks including a structurally zero Nordtvedt effect. Gravitational radiation is developed by showing that the six independent components of the symmetric deformation tensor each carry 1/6 of the GR quadrupole power, recovering the total GR radiation formula exactly, while predicting a breathing-mode channel from eccentric-orbit trace oscillations as a concrete observational distinction from general relativity. Gravity Probe B's geodetic effect is treated as the same orbital-precession mechanism as Mercury's, while the frame-drag effect requires the rotating-source vector displacement sector, yielding predictions close to measured values.