1 On the inline six cylinder with manual transmission, disconnect the clutch linkage and remove the clutch cross shaft. 2  On the V8, remove the engine mount bracket-to-frame bolts. 3  Remove the engine mount through-bolts. 4  On the inline six cylinder: 5  Lower the van and attach a lifting device to the engine.
Quality Rating System Overview. The Quality Rating System (QRS) is a voluntary program that provides a rating of between one and five stars for providers who go the extra mile to offer exceptional care.
STC stands for Sound Transmission Class. Basically, STC ratings are an established way to average how much sound is stopped by something. STC ratings are used for windows, doors, walls and most building materials. For windows, STC ratings range from 18 to 38.STC ratings are the ONLY way to accurately compare various noise reduction products.n STC rating is an instrument measurement of how much noise is stopped. The STC ratings allow accurate âapple to appleâ comparisons. The STC rating is the average amount of noise stopped at 18 different frequencies, measured in decibels.