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Unread 04-29-2008   #1 (permalink)
MALANDRIN 408 is offline Rookie


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Question Mustang T5 And Chevy T5 interchangeable?

I know chevy? my cousin has a 1990 camaro with a t5 his engine recently got messed up so finaly decided to go with a mustang. he just recently rebuilt his chevy t5 nd he was wondering if the tranny would fit his 1990 mustang gt 5.0???
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Unread 04-29-2008   #2 (permalink)
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Highly doubtful.
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Unread 04-29-2008   #3 (permalink)
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Even if it did work Chevy never switched over and started using the improved T-5s that came out like Ford did. Find a T-5 from a Mustang.
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Unread 04-29-2008   #4 (permalink)
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i bet it will bolt to the mustang bellhousing but the shifter might be in the wrong place, or the input shaft would be too short or long.
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Unread 04-30-2008   #5 (permalink)
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The GM T5 housing is cast thicker in some important areas. Don't get my lying trying to tell you where.

I was told to acquire a GM T5 housing and put my G-force gears in it. I would have to do some machining to make the taller 5th gear to fit, but other than that... it will work.

I have not done this yet, so it's still heresay. I would think someone from Astro or a G-force tech would be able to answer this definitively.
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Unread 04-30-2008   #6 (permalink)
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READ MY WORDS......... The Chevy version T5 WILL NOT bolt up to a Ford motor. The bolt pattern is different. The input shaft length is way different and the chevy version is canted 17* towards the drivers side.
If by some chance you fabricated an adapter plate to mate the 2 together then you'll need to figure out the speedometer cable as the chevy cable does not have the ford end on it and you won't be able to make that connection either. The O.D. of the input shaft is different between the 2 and the pilot bearing would have to be a custom piece as well. Also, because of the different o.d. of the input, a ford splined clutch disc would not fit it, you'd have to mix and match a clutch kit in order to make it work. Last...the shifter is not in the correct position to fit a mustang. The fox body mustang uses the 19 1/2" position which means that if you measure from the front face of the transmission, down the centerline of the tranny to shifter, it would be 19.500" back. Depending on what year Camaro the T5 came out of, it will not be in that location.

Hopefully this cleared up some of the mis-information in this thread.



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Unread 04-30-2008   #7 (permalink)
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Quote:
Originally Posted by rj8806 View Post
READ MY WORDS......... The Chevy version T5 WILL NOT bolt up to a Ford motor. The bolt pattern is different. The input shaft length is way different and the chevy version is canted 17* towards the drivers side.
If by some chance you fabricated an adapter plate to mate the 2 together then you'll need to figure out the speedometer cable as the chevy cable does not have the ford end on it and you won't be able to make that connection either. The O.D. of the input shaft is different between the 2 and the pilot bearing would have to be a custom piece as well. Also, because of the different o.d. of the input, a ford splined clutch disc would not fit it, you'd have to mix and match a clutch kit in order to make it work. Last...the shifter is not in the correct position to fit a mustang. The fox body mustang uses the 19 1/2" position which means that if you measure from the front face of the transmission, down the centerline of the tranny to shifter, it would be 19.500" back. Depending on what year Camaro the T5 came out of, it will not be in that location.

Hopefully this cleared up some of the mis-information in this thread.



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It's always nice to have some knowledge and answers.

However, as you've stated... "with fabrication..." it can and HAS been done.
I can only prove this however, if I can get the person who has this setup to take pictures.

There are those content to just assemble or plug and play their junk... then there are those who experiment and "build" in the quest to be quicker, faster, stronger.

On a side note... I'd like to know if you have the ability to take pictures of the two cases side by side internally with no gears and shafts installed.
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Unread 04-30-2008   #8 (permalink)
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Quote:
Originally Posted by 347HO View Post
It's always nice to have some knowledge and answers.

However, as you've stated... "with fabrication..." it can and HAS been done.
I can only prove this however, if I can get the person who has this setup to take pictures.

There are those content to just assemble or plug and play their junk... then there are those who experiment and "build" in the quest to be quicker, faster, stronger.

On a side note... I'd like to know if you have the ability to take pictures of the two cases side by side internally with no gears and shafts installed.

You're right, I never said it couldn't be fabricated, I said it won't bolt up.

I am not able to take pictures of them as we don't deal with the wimpy T5's(:hihi, only the big brother to them, the TKO.

There is considerable fab work needed to make it work, why bother? You could just go get a Ford T5 and have it bolt right in. Why bother changing bolt patterns, input shafts, custom speedo cable and pilot bearing, make shift clutches and fabbing a shift position re-location kit? Seems like an awful lot of work to waste on a T5 but that's just me.


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Unread 04-30-2008   #9 (permalink)
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Quote:
Originally Posted by rj8806 View Post
You're right, I never said it couldn't be Seems like an awful lot of work to waste on a T5 but that's just me.

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"If" it takes that much effort, I don't see the value in it.
However, I take it upon great faith my contact is not crapping me.
If this is standard practice for his shop, he has his own niche in the T5 market.
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Unread 05-01-2008   #10 (permalink)
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Quote:
Originally Posted by 347HO View Post
"If" it takes that much effort, I don't see the value in it.
However, I take it upon great faith my contact is not crapping me.
If this is standard practice for his shop, he has his own niche in the T5 market.

There is no "IF" about it. The differences I listed are fact and will need to be addressed to make it work.
Like I said, it can definitely be done, it just takes alot of modifications. A shop could accomplish it, I'm sure, but why would you go to that trouble when a mustang version will bolt right in without all of the modification? The chevy T5 is not any stronger so what is the advantage of using the GM T5?

I am not trying to be combative, only inform you and whoever else is reading this as to what would be needed. Good luck and let us know how it turns out.


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