Since 1974, Paul's Auto Repair has been helping Southwestern Wisconsin and Northeast Iowa (including Dubuque) achieve optimal performance for their vehicle's transmission needs. Services include Free Code Diagnostics, Automatic Transmission Overhaul and Repair, Standard Transmission Repair, Transfer Case Repair, Differential Repair, Clutch Replacement, Work on Older Transmissions (Automatic and Manual) and Transmission Cooling System Flushing.. Transmissions