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What Tranny fluid to use in a 47re DTT Trans?

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Old 03-25-2006, 05:17 PM
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What Tranny fluid to use in a 47re DTT Trans?
I think my fluid is a little low, looking for what i should use top it off. I am currently running synthetic, what should i get? Thanks for the help
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Old 03-25-2006, 05:36 PM
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anyone got any ideas, want to pick some up tomorrow, thanks again
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Old 03-25-2006, 06:27 PM
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DTT recommends +3 or dexron.
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Old 03-25-2006, 06:37 PM
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I've ran both amsoil synthetic and now I've been running dextron/mercon. I would not mix fluids.

Find out what you already have in use.
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Old 03-25-2006, 06:58 PM
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alright thanks for the replies, I am wondering what Mass Diesel put in there when they serviced it, i know that it was synthetic, maybe it will say on my receipt, thanks again
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Old 03-25-2006, 07:04 PM
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I just looked at my reciept and all is said was synthetic AFT fluid, how many kinds of synthetic ATF are there? Thanks again
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Old 03-30-2006, 11:44 PM
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Any synthetic ATF will be fine. There are no complications adding 1 quart to top it off.I know Scott used to use amsoil.....
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Old 03-31-2006, 10:38 AM
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What does DTT do to a trans the warrants the use of Dexron versus the stock ATF +3 or +4? Just curious.

I'm a manual guy, so this doesn't affect me, but I'd like to know.
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Old 03-31-2006, 10:46 AM
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Originally Posted by HOHN
What does DTT do to a trans the warrants the use of Dexron versus the stock ATF +3 or +4? Just curious.

I'm a manual guy, so this doesn't affect me, but I'd like to know.
Bill K. will never tell. I think it has to with the clutch material they use in their rebuild kits.
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Old 03-31-2006, 11:28 AM
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ATF 4 should be used using dextron makes the clutches bite harder but also wears them out faster and ATF 4 can handle hire temps the best thing todo is use lube guard automatic transmission protectant with you trans its $16 a bottle but works miracles www.mlsna.net carries it. we have 3 trucks 47re trans with 300+ k on the trannies all factory original trannies no issues and all of them are trailer rigs
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Old 03-31-2006, 02:42 PM
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Originally Posted by Wolf_fighter
ATF 4 should be used using dextron makes the clutches bite harder but also wears them out faster and ATF 4 can handle hire temps the best thing todo is use lube guard automatic transmission protectant with you trans its $16 a bottle but works miracles www.mlsna.net carries it. we have 3 trucks 47re trans with 300+ k on the trannies all factory original trannies no issues and all of them are trailer rigs
There in lies the problem with your recommendation. A DTT tranny is not a factory original. DTT specifically recommends +3 and NOT to use +4. They also state NOT to use any modifiers or additives in the oil without first calling them for approval.
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Old 03-31-2006, 06:52 PM
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I topped mine off with a Quart of Synthetic ATF +4, I was told that +3 was no longer made and that the ATF +4 replaces +3
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Old 03-31-2006, 09:17 PM
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Same here....no ATF plus 3...only 4...and now it's synthetic...
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Old 03-31-2006, 09:21 PM
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Look at the ATF on BullyDogs website. Looks like might be good stuff. I may run it after I rebuild my tranny and some of ya'll do my field testing
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