i dont think the b61 was slanted due to adequate hood length, this is the only good photo i have seen of a slanted mack.....then again i havent been looking for one. I tried to copy the pic but the best i can do is a link. The pic shows the oil pan tilting, the site has great reference pics of the mack though. http://classiccars.com/listings/view/698830/1962-mack-truck-for-sale-in-cambridge-massachusetts-02138#