On a recent trip to the cabin over the long weekend my truck failed to come back on it's own power. After fiquring out that the cheep profourm geardrive i put on my recently rebuild motor blew up causing me to get my truck towed from 150 kilomiters home( whitch caused my tow bar the rip my bumber off and rip the top frame mounts off). WHen the gear drive exploded it caused some of my valves to bend. This sucks. The worst part is, is that the motor is only 2000 miles old. Now i have to rip the heads off and rebuild them. But there is one up side. I'm going to port and polish and hog out the valves to make more power. Anyone else ever had problems with there cheep profourm gear drive. Any car part should last more than that. Not like i drove my truck that hard