A must for the serious GM do-it-yourselfer. Covers THM200-4R, THM350,THM400 and THM700-R4 automatic transmissions. Includes fundamentals, diagnosis, step-by-step overhaul procedures, modifications, transmission identification, in-vehicle repairs and adjustments, professional hints and tips, tools and equipment transmission removal and installation, source list, glossary of terms and information about improving your automatic Over 1000 step-by-step photos take the mystery out of transmissions. Coverage added for THM 125/125C, THM 3T40, THM440-T4 and THM 4T60 front-wheel drive transaxles. Manual in English