DD 507-1A transmission

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tcollins2
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DD 507-1A transmission

Post by tcollins2 »

I rubbed off all the layers of paint from the transmission plate and the model number is DD 507-1A it says it's a Detroit Diesel transmission. Is this the same as a twin disc? Merger? Oil capacity 1.72 gallons, ratio 1.5:1
1990 Trojan 12M International Express Detroit Diesels 6-71T's, 425HP
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tcollins2
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Re: DD 507-1A transmission

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1990 Trojan 12M International Express Detroit Diesels 6-71T's, 425HP
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prowlersfish
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Re: DD 507-1A transmission

Post by prowlersfish »

Its safe to say you have twin disc gears . MG-507-1A . Oil is listed at 1.72 gal. But that will vary on the angle its mounted . Also you may not get it all out . It calls for 30W or 40W oil depending on trans temp . 30W fits the bill in most cases

As far as being list as a DD vs MG its because it was sold with DD engine I believe .

This below is from a boat diesel post . With you being in NY 30W would be the choice . Unless you have trans temp gauges that say different .
"The TD manual states:
operating temp 150 - 185 degrees = SAE 30 weight engine oil
operating temp 175 - 210 degrees = SAE 40 weight engine oil
Capacity is 1.72 US gallons according to manual"
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tcollins2
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Re: DD 507-1A transmission

Post by tcollins2 »

Thanks!
1990 Trojan 12M International Express Detroit Diesels 6-71T's, 425HP
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