Sixto, thanks for the info. I really appreciate it. I am still fairly ignorant concerning the Mercedes engines. And yes, I thought it might cost more to rebuild an older engine than to just buy a newer used engine and trans.

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98 Silverado K1500 Z71, 6.5L TD, 4L80E, 3.73, 180K, 2.25" Crossover, 3.0" Down Pipe and Exhaust