I have a 1967 Kaiser/Jeep M715. AMC was buying out Kaiser, and Kaiser had the military contract at the time. Lots of these were used in Vietnam production ran from 67-69. They are a 1 1/4 ton pickup with the 230 Tornado OHC. Dana 60 front Dana 70 rear and 5.83's stuffed in the differentials. Like previous posts state, nice cast iron header setup. Leak leak Leak leak Leak oil, you betcha. Remember I'm talking about a military application speed was not a factor--low end torque was the issue. With the gearing I'm not sure if it is a low end monster or the ratios, I do know that it will just crawl through, over, anything in its path. I use the truck on my farm it's unstoppable. I have heard that it was one of the first OHC sixes and highly prone to failure. As far as I can tell after ten years of typical old farm truck abuse the only issue is it leaks oil, leaks oil, leaks oil. Never seen any outside of Jeep application and further more on my dash it says 28 gallon tank, 7 Miles per gallon, 196 mile range on a good day, GOOD LUCK!!!!!!!