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greatinspirational · 09-19-2014, 08:47 PM

I have a broken trans on a DF/S Oldsmobile Delta 88 6 cylinder. Wondering if I should rebuild the original stock 440T4 trans that's in car or if there is a better option. I was told that the TH325 is like the TH200 except for 6 cylinders. Any truth to this ? Is there any place to look up internal rotating mass and trans weight specs for these 6 cylinder options ?

TH425 = 1966 to 1978 (used on Cadillac Eldorado, Oldsmobile Toronado and the GMC motorhomes/transmodes)
TH325 = 1979 to 1981 (used on Cadillac Eldorado and 1980-generation Seville, and the Oldsmobile Toronado and Buick Riviera)
TH325-4L = 1982 to 1985 (see TH325 for usage)
TH125 = 1980 to 1981
TH125C = 1982 to 1986
TH440T4 transaxle = 1985 to 1986 (used with TH125C)

Any gear and convertor advice ? I'm new to the game. Thanks !!

09-19-2014, 08:47 PM	#1
greatinspirational Junior Member Join Date: Jul 2012 Posts: 70 Likes: 6 Liked 28 Times in 12 Posts	Front Wheel Drive Trans Options And Help I have a broken trans on a DF/S Oldsmobile Delta 88 6 cylinder. Wondering if I should rebuild the original stock 440T4 trans that's in car or if there is a better option. I was told that the TH325 is like the TH200 except for 6 cylinders. Any truth to this ? Is there any place to look up internal rotating mass and trans weight specs for these 6 cylinder options ? TH425 = 1966 to 1978 (used on Cadillac Eldorado, Oldsmobile Toronado and the GMC motorhomes/transmodes) TH325 = 1979 to 1981 (used on Cadillac Eldorado and 1980-generation Seville, and the Oldsmobile Toronado and Buick Riviera) TH325-4L = 1982 to 1985 (see TH325 for usage) TH125 = 1980 to 1981 TH125C = 1982 to 1986 TH440T4 transaxle = 1985 to 1986 (used with TH125C) Any gear and convertor advice ? I'm new to the game. Thanks !!