Re: 1987 GMC R3500 dually with th400
x2 tranny cooler. These transmissions are pretty tough as is. Just keep it from getting too hot and it'll be happy.
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1967 CHEVELLE MALIBU 427/700R4
1971 CHEYENNE 10 350/350
1983 GMC K3500 454/400/205
1987 R10 TBI 350/700R4
2014 CRUZE 2.0 TURBO DIESEL
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