CHE Shaft Mount LS Trunnion Kit for Cathedral Port GM Gen III / IV 4.8L 5.3L 6.0LThe CHE Precision Shaft Mount LS Trunnion Kit includes 8 shaft trunnions, 32 full floating bronze bushings, and 33 total snap rings CHE Precisions Shaft Mount Trunnion Kit is a high quality, precision engineered kit designed to ensure utmost rigidity and optimal performance of your valvetrain. The shaft kit system minimizes rocker arm movement, which reduces valve train deflection and provides more consistent valve actuation and improved stability.