1st Generation Specific (1979-1985) 1979-1985 Discussion including performance modifications and technical support sections

T-5 Tranny Swap?

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Old Jul 13, 2004 | 07:07 PM
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T-5 Tranny Swap?

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The search term you specified (t5) is under the minimum word length (3) and therefore will not be found. Please make this term longer.

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Yea... so I was a little pissed.. anyway heres what I want to get : http://www.mazdacomp.com/drivetrain.htm
the first thing at the top of that page. Has anyone else done this or heard of someone that has one? Any other info would be cool.. cause as you can see i'm having trouble finding it.
I would like to accompany this tranny with a different rear-end, which I know a place that does that so I can chop one to fit professionaly.
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Old Jul 13, 2004 | 07:11 PM
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T5's suck. They're weak trash, the only good point about them is that some versions had semi-decent ratios available, if you don't mind a mega-tall 5th.

You know, I was playing with a Muncie four-speed yesterday and I found that its pilot is a perfect fit in the rotary pilot bearing.
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Old Jul 13, 2004 | 07:16 PM
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Well what would be worth the time if you play hard ( burnouts/autocross/drag) the t5 or a rebuild on my stock? I mean for some reason the goof ***** around here would charge next to nothing for t5 stuff and they're prolly ready available. I donno, i'm searching long and hard for something, I'd like to get a gm based tranny possibly, cause I know rednecks that race in circles with them haha.
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Old Jul 13, 2004 | 07:47 PM
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I don't know anyone who races in circles with a T5.
T2 trans has been good to me.
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Old Jul 13, 2004 | 07:53 PM
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Turbo II all the way, except for that ratio problem. (Crappy ratios) But it requires far less custom work than, say, a T5.

Next to nothing for T5 stuff? Probably because it's dead. A T5 that still has all five gears is worth maybe $500-800 here, probably would be worth more than that if stronger aftermarket units weren't so (relatively) cheap. But there are two kinds of T5's - those that are broken, and those that aren't broken yet.

A T10 would kick *** for a rotary. So much stuff is available for them that they're practically generic. The only problem is finding one in decent shape - we're talking big heaping buckets of money, like $1000 for worn out junk.
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Old Jul 13, 2004 | 08:30 PM
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Just a heads up if you are searching a two letter word add an * to it. For instance many people use 85 instead of 1985 if you type 85* or *85 you'll get hits.
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Old Jul 13, 2004 | 09:12 PM
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World Class T5s are OK.Some are rated to hold about 400lbs torque (Cobra) which is tough to do without a well built 13B.
Its the older 80s 4 and 6 cylinder applications that sucked.I run a T-5 in my Chevy V-6 Samurai.Not all T-5s are the same,although they look it on the outside.Primary reason to get one,as was stated is the large selection of ratios.For the ease of install,I gotta go with the TII box though.The ratios are wide,but you can still mess with the rearend to liven things up a bit.
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Old Jul 13, 2004 | 09:35 PM
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Well if I ever find a T2 and it needs rebuilding, is it worth it, and would it bolt to the 12a as the stock, or do I need like 13b clutch disk or something? I know I'll make a driveshaft though.
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Old Jul 14, 2004 | 10:41 AM
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Only get a T-5 from a V8 car. Not from a 4 cyl or 6cyl thunderbird/mustang. T-5's are triple the strength of a Turbo II tranny.
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Old Jul 14, 2004 | 05:35 PM
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Originally posted by RX729
T-5's are triple the strength of a Turbo II tranny.
I beg to differ.
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Old Jul 14, 2004 | 06:34 PM
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Well I'm trying to figure what would be the next step froma t2 tranny? I dont want a 3rd gen tranny eaither...
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Old Jul 14, 2004 | 06:39 PM
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All t5's from 86 on where world class, the only reason they had different torque rating was do to the gearing.
I have been running a 4cyl t5 from a musatng for the last 3 years. Probably have about 400 1/8th and 1/4 mile passes on it and am putting down around 380hp at the wheels. I'm always on slicks and never launch under 5000 rpms.
There is a huge market for t5's, you can buy one of probably 30 different shifters for them. There is atleast 3 major companies that all they do is stock parts and modify them. You can get them pro-shifted fairly cheap if it is a drag only car.
Also there is now g-force gear sets available for them in a varying arangement of gear ratios in either striaght cut gears or helical gears. Made from thicker and stronger material with torque ratings nearing the 650ft/lb mark.

Later
Randy

Last edited by Eville140; Jul 14, 2004 at 06:52 PM.
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Old Jul 14, 2004 | 06:41 PM
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My first double post, EVER!
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Old Jul 14, 2004 | 06:49 PM
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How'd you do the shifter Eville? I thought the T-5 tranny was toward the bellhousing, not on the tail shaft. And who made the adapter? And how much?

I've been toying with the t-5 idea also.
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Old Jul 14, 2004 | 07:07 PM
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Look at my first post on this thread for price for the adapter. Oh well you'll have to goto their main page and select pricelist.
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Old Jul 14, 2004 | 07:08 PM
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Sorry forgot to hit my sig button. My t5 is hooked to a 4cyl ford engine


But on ford t5's the shifter in on the tail shaft towards the end.


Later
Randy
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Old Jul 14, 2004 | 07:22 PM
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Originally posted by steve84GS TII
World Class T5s are OK.Some are rated to hold about 400lbs torque (Cobra) which is tough to do without a well built 13B.
There is no - repeat, no - T5 rated for more than 300lb-ft of torque. That is why when you got a 3rd gen Camaro with a 5.7l the only transmission option was an automatic. Camaros didn't get 5.7 and manual trans until the 4th-gen with the T56.

The way they got the torque rating up from 150ish to 300 was simply by reducing 1st gear from roughly 4:1 to the 3:1 range. A tranny's torque rating is based on first gear since it has the highest torque multiplication. The rest of the tranny is still weak, weak, weak.

And that 300lb-ft rating was *very* marginal, they barely stand up to street use behind a V8. Drag racing breaks 'em quickly even behind stock engines, and road racing still manages to trash 'em.

Note that Ford never used the T5 in trucks. Ford puts things in the car line first to "prove" them for truck usage, since Ford's main business is in trucks, and people need trucks for work, and if a truck is crappy then that means lost work due to downtime and unhappy customers. (Now you know where brand loyalty comes from - they develop a trust with a certain make that has never let 'em down in the past) Ford didn't bother with the T5 in the trucks, they went straight from the RUG overdrive-ized Toploader 4-speed, to a unit based on (drumroll please) the Mazda "ribcase" aka Turbo II trans.
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Old Jul 14, 2004 | 07:42 PM
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Originally posted by peejay
(Now you know where brand loyalty comes from - they develop a trust with a certain make that has never let 'em down in the past) Ford didn't bother with the T5 in the trucks, they went straight from the RUG overdrive-ized Toploader 4-speed, to a unit based on (drumroll please) the Mazda "ribcase" aka Turbo II trans. [/B]
This is true. Even the 5 speed in the new F-150 on the V-6's and the (yes they make it, i work at a ford dealer, and i've seen one factory) V8 (4.6L only).

Same exact transmission you find on the previous (1996 and prior) Ford with the 4.9L 300 CID I6.
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Old Jul 14, 2004 | 07:51 PM
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The 93 T-5z is rated to 330lbs and up to 450hp, street driven.

Heres a very informative link about T-5s......

www.allfordmustangs.com/Detailed/349.shtml
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Old Jul 14, 2004 | 07:53 PM
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They don't list the price of the T-5 bellhousing adapted.... and OMG that is a big *** turbo on that 2.3.
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Old Jul 14, 2004 | 08:00 PM
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Transmissions don't have HP ratings. Horsepower doesn't kill a trans, torque does. Horsepower is just a figment of the imagination, a handy number to determine an engine's ultimate thrust production when you take gear ratios into account. (Take two engines that make X HP, but the first one makes it at half the RPM. That would mean the first engine makes twice as much torque as the second one, at peak HP. However, since the second one is going twice as fast, you gear it down twice as far, so the wheel speed and wheel torque end up being the same)
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