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Old 04-19-2014, 07:49 AM   #2
D13
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Join Date: Feb 2007
Location: Memphis MI
Posts: 1,851
Re: Oldsmobile Diesel Transmission Questions

Never a 250C.
A 200C is best suited for carbed V-6.
2004R is good for a 5.7 diesel, kind of light on torque capability but a good gear spread to take advantage of the diesel's torque on the highway.
TH350 with highway gears is a fair match.
TH400 will last forever and is overkill unless you're towing.
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1987 2 ton
1982 250/TH350 beater in progress
Dad's 1981 3/4 L6 3 on tree posi and no options, awaiting restoration or scrapping
Plus a mess o' tractors
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