Two quick tests to perform on prospective purchases. with engine running and oil cap in place remove breather hose from the valve cover and plug the opening if the engine dies in under ten seconds there is excessive blow by (low compresssion). The other quick test is Park to reverse. With engine running and foot on the brake move shifter from park to reverse. if the time to engage reverse is two seconds or more you have excessive clutch pack wear. There are some fine points to interpreting the results but I've got to run.

Bob D.