In a message dated 1/8/2003 8:27:18 PM Pacific Standard Time, imperialist60@xxxxxxxxx writes: << The wire wheel went straight down to bare metal and a straight edge proved that the thing appeared true and flat. >> There is just no substitute for doing something the right way! << New gaskets, serious leverage to tighten everything, and a few choice words, and Voila! No more leak. >> Some exhaust manifolds use no gaskets at the heads at all and most are tightened down barely more than spark plugs! The moral here is to allow the original engineering do the work, not excessive torque! << Also, when the car is shifted to reverse with a foot on the brake, it makes a rhythmic knocking sound. It has just started to do this in forward at rest with the brake, and there is harsh driveline vibration >> The universal joints are the first thing to check, any play means that they should be replaced. Roy 67 Crown FDHT