Installation on Ram 5.7L HEMI trucks may involve tight working areas around the driver side, steering shaft, heat shields, lower bolts, starter area, and exhaust connections. Old manifold bolts or studs may also be rusted, seized, or broken, so test fitting and careful preparation are important before final tightening. We recommend professional installation, clean sealing surfaces, hand-starting all bolts, tightening evenly, checking clearance around nearby wiring, hoses, plug boots, and heat shields, and rechecking fasteners after heat cycles when required.