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Old 02-09-2011, 04:34 PM
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transmission choice

i have a 73 firebird with whats going to be a mildly build 455, im just wondering my options for manual transmissions, i know about the t-10 and the t-5 but i dont know which one is better. im primarily going to use this car for my around town saturday night special. not really a daily driver

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Old 02-09-2011, 04:46 PM
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I would probably go with the T-10 but i don't know alot about the T-5 transmissions. I do know they made several different ones they were in s-10/minivans even chevette had them in them i just don't see the T-5 being that strong but i might be wrong on that. Maybe someone with experience with one will post for you. IIRC The T-5 was on 6cyl engines and v6 and 4cyl engines i don't remember them being on a v8 from the factory.JMO
So me it would have to be the T-10. IMHO i have a doug nash 4-speed in my T/A i really like it so far.

Cole
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Old 02-09-2011, 06:54 PM
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Does it have a pontiac bolt pattern? Can you change the bell housing. I thought they were integral. It wont bolt up will it?
Maybe the t 5 would have the BOP pattern if it came from a v 6 camaro or F bird
( Ive never even noticed, usually I am focused on getting a clutch installed and not missing any trouble spots with that.I never think to even look at the trans unless it is leaking or lunched)

Last edited by latech; 02-09-2011 at 07:04 PM.
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Old 02-09-2011, 08:37 PM
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Quote:
Originally Posted by latech
Does it have a pontiac bolt pattern? Can you change the bell housing. I thought they were integral. It wont bolt up will it?
Maybe the t 5 would have the BOP pattern if it came from a v 6 camaro or F bird
( Ive never even noticed, usually I am focused on getting a clutch installed and not missing any trouble spots with that.I never think to even look at the trans unless it is leaking or lunched)
The trans will bolt in IIRC but the bell housing is different has to be Pontiac pattern. The bell housing is where the difference is. IIRC

Cole
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Old 02-09-2011, 09:54 PM
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Use a Tremec. TKO 500 will suffice.
I seem to recall a Classic 5 Speed website that has all the parts
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Old 02-09-2011, 11:05 PM
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The T-5, even in World class V8 form will not put up with the torque of a 455 for long, and could easily blow up at the first clutch dunp you try. These are relativelt light duty transmissions...the reason that GM refused to put them behind anything bigger than a 205hp 305. You couldn't get a 350 powered Camaro or Firebird with one, only with an automatic.

The only factory overdrive manual trans that will handle what you want is the T-56 6 speed.
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