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Old 07-05-2012, 08:40 PM   #1
SeeYaLater5.9
 
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6.7 auto tranny advice?

My buddy just picked up a new to him 6.7 and hes currently running H&S tunes on a bullydog box, anywho...

Stock tranny/TC doesn't really like the hotter tunes. Doesn't seem to slip but the TC just doesn't lock in like I feel it needs to. Truck will be screaming but doesn't seem to move anywhere fast. Now if you roll into it and keep it locked ***** is salty.

He's lookin to go with a "built" tranny or upgrade some internals. Plans for the truck are eventually a set of II's twins and maybe a mild injector/nozzle upgrade. He does run it pretty hard. All the time. So I'm askin you guys for the right direction to point him in or a list of hard parts to check into.

Thanks
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Old 07-06-2012, 12:13 AM   #2
SeeYaLater5.9
 
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Bump...anybody?

Lookin to build soon..
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Old 07-06-2012, 01:04 AM   #3
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Call Suncoast. They're working out the bugs on the 68rfe.
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Old 07-06-2012, 05:13 AM   #4
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Unfortunately, his truck has a 68RFE in it. You can't polish a turd.
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Old 07-06-2012, 08:38 AM   #5
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I don't think I would tell the world you're buddy is putting H&S tunes on his BD. Not saying he's the only one, but companys frown upon that stuff.
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Old 07-06-2012, 10:53 PM   #6
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The Suncoast m3ga68 is currently holding 1000+ on My daily driver. Even though i am running a lockup tcm tune it still will not lock from a dig, only after the 32mph mark and then its golden. The current tranny build is awesome and will take a beating but its just not going to be a winner on the track unless someone can figure a way to eliminate the TCM and drive this thing stand alone. If your not a person that is looking for the fastest time at the track this tranny will no doubt do the job.
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Old 07-06-2012, 10:54 PM   #7
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Quote:
Originally Posted by diesel_importer View Post
I don't think I would tell the world you're buddy is putting H&S tunes on his BD. Not saying he's the only one, but companys frown upon that stuff.
So it is true.
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Old 07-13-2012, 06:24 AM   #8
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stick in a built allison or a 48re.
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Old 07-16-2012, 09:56 PM   #9
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Quote:
Originally Posted by rjp View Post
The Suncoast m3ga68 is currently holding 1000+ on My daily driver. Even though i am running a lockup tcm tune it still will not lock from a dig, only after the 32mph mark and then its golden. The current tranny build is awesome and will take a beating but its just not going to be a winner on the track unless someone can figure a way to eliminate the TCM and drive this thing stand alone. If your not a person that is looking for the fastest time at the track this tranny will no doubt do the job.

Does SC offer a TCM tune for mild built trucks?
 
Old 07-16-2012, 10:46 PM   #10
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Quote:
Originally Posted by MaxPF View Post
Unfortunately, his truck has a 68RFE in it. You can't polish a turd.
You can, but when your done all you got is a shiny turd.
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Old 07-17-2012, 07:06 AM   #11
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The best advice you can give him is to do a 48re swap.
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Old 07-17-2012, 12:08 PM   #12
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Unless you want to keep six speeds...then Allison.
 
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