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:confused: i need to know what the part numbers are for the speedo drive gear and the driven gearfor a th200 4R with 3.42 rear end gears.. what color is the drive gear and the driven gear. also what is the proper ratio on the the drive gear and the driven gear. any help would be appreciated.

ok all you TH200 4R transmission gurus, i need some help. i have got a line on a TH200 4R that has been rebuilt but it is in an "OG" box. is this ok? i have been told that this is a non-performance application box. what do i need to do to upgrade? does anyone know where to get a better valve...