I have a 95 Silverado 2500 with the 6.5. It's been good to me, but not enough power if you are towing heavy stuff. The weak points of the motor are injection pumps and lift pumps. Also the PMD located on the side of the injection pump. It's an electronic driver that gets too hot.. I bought a relocation kit and mounted it in my grille. The 6.5 is also a pig on fuel.