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Buying new. What's the difference between these two T-56s?

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Old 12-12-2018, 09:46 AM
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Default Buying new. What's the difference between these two T-56s?

I'm working on my LS376/480 swap into my 1991 Fox Body Mustang Coupe. I've already ordered the engine. Now I need a 6-sp. I've noticed that there can be a big difference in price but I don't know the difference in the actual transmissions.

Both of the following are from Summit Racing and the price difference is big!

1. TUET 11009, $3195

2. Chev Perf 19352208 $4056.92

Are these the same transmission? They appear to be the same to me but I want to be sure.
Old 12-12-2018, 06:59 PM
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difference in speedometer gear/drive
Old 12-13-2018, 09:16 AM
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Originally Posted by voda1
difference in speedometer gear/drive
Okay. I can't seem to find the speedometer gear/drive difference. Can you elaborate?
Old 12-13-2018, 01:38 PM
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see attached:
Old 12-14-2018, 03:22 PM
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I enquired with Tremec about the difference some time ago too, and it does seem the dual speedo outputs are the only difference.

Seems odd given the huge price difference between the two boxes though.
Old 12-14-2018, 03:27 PM
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Thanks for your reply, stevie. It really does seem to be a huge price difference for not a lot of actual difference in the transmissions.
Old 12-14-2018, 03:49 PM
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And I quote part of the reply from Tremec....wow...almost exactly 1 year ago lol.

"The Super Magnum is the same as other Magnums except for a 40-tooth tone wheel to work with GM Connect & Cruise controller kits."
Old 12-14-2018, 04:34 PM
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Originally Posted by stevieturbo
And I quote part of the reply from Tremec....wow...almost exactly 1 year ago lol.

"The Super Magnum is the same as other Magnums except for a 40-tooth tone wheel to work with GM Connect & Cruise controller kits."
I’m guessing that if I don’t use the General Motors engine controller, that 40-tooth tone wheel wouldn’t do me any good. Even though I think it’s very pricey, I’m planning on using the Holley system.
Old 12-14-2018, 04:36 PM
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voda, I forgot to thank you for the clarification you gave on the speedometer output differences.
Old 12-14-2018, 04:40 PM
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If you have no need for that dual speedo output, then it does seem like a waste of money.

My regular Magnum had the normal VR 2 wire speed sensor on it, although I think it might be a 12 tooth wheel inside or something. Never actually looked as I wouldnt be using it.

Although if you needed either a speed or driveshaft speed trigger it would work for you and with no OEM ecu or parts to keep happy, should be fine for any aftermarket ecu to use.




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