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Author
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Topic: URGENT!!! please read.....please!!!
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68stang351
Gearhead Posts: 265
From: Savoy TX, USA
Registered: Mar 2002
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posted 04-03-2002 08:03 PM
   
Ok, I'm the one thats about to put the 351W and T5 in my 68 (you're probably getting tired of me by now). I found out that the late model autos and T5's are the same length as each other, I've also found out that early 3sp and 4sp manuals are the same length as each other. So if anyone has swapped an early manual for a late manual or auto, did you have to have your driveshaft shortened? Or lengthened? I'm thinking that I saw Horsepower TV put a tremec (same length as T5 also) into a 65 with a 4speed (originally) and didn't have to have it shortened which would mean my 3sp. and my T5 should be the same length, right? If I'm thinking right, I shouldn't have to have it shortened or lengthened....right????? Any thoughts or advice????------------------
Hoofbeats are louder than Heartbeats! [This message has been edited by 68stang351 (edited 04-03-2002).]
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JohnnyBadBoy
Journeyman Posts: 11
From: Bloomsburg, PA
Registered: Jun 2001
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posted 04-03-2002 09:06 PM
Can't you just use a tape measure and see if everything is the same, or at least very close. I did this when i swapped a different tranny into my s-10, and it worked fine.
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SundanceKid
Gearhead Posts: 777
From: UT
Registered: Feb 2001
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posted 04-04-2002 04:52 AM
The Horsepower TV episode you mentioned did have to change the driveshaft length. The trow it in there when they talk about needing to change the spline count too. But that show in peticular was full of mis-information...like when they say to fill the tranny with 3 quarts transmission fluid! What they should have said was GM syncromesh fluid. Also they should be castrated for butchering that car like they did! You will need to get the driveline length changed most places around here only charge 50.00 or less.
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68stang351
Gearhead Posts: 265
From: Savoy TX, USA
Registered: Mar 2002
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posted 04-04-2002 05:12 PM
50$??? I didn't know it was that cheap. I hope its that cheap here, cuz if it is then I'm not going to worry about it too much.------------------
Hoofbeats are louder than Heartbeats!
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Billgear
Gearhead Posts: 180
From: Concord,CA
Registered: May 2000
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posted 04-04-2002 08:30 PM
I did not have to shorten mine when I went
from a Toploader to T-5.------------------
Regards,
BillGear 1966 Coupe
Balanced 302
AFR Aluminum 165cc heads
Custom FTI Cam 565@284
Weiand Stealth Intake
Hooker Super Comps
T-5 Transmission with 3.55 gears
All the suspension goodies.
www.289mustang.com
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steve'66
Gearhead Posts: 5428
From: Sonoma,CA,USA
Registered: Mar 2000
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posted 04-04-2002 08:40 PM
I've swapped from a 3 speed to a 4 speed toploader (same driveshaft) then a t-5 with the correct output yoke and had to shorten the shaft 3/4", then swaped to a c-4 and had to lengthen the shaft 3/4". So in my humble opinion with the correct output yoke you'll need to shorten your driveshaft 3/4" or so. This was on a '66 by the way.  SteveW
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kcode
Gearhead Posts: 2435
From: alvaton,ky,usa Suburb of Bowling Green, M&M #79, MCA #29208
Registered: Jun 99
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posted 04-04-2002 09:57 PM
Ready for a confusing sob story....when I put the T-5 in my coupe, being a dumb a$$, I shortened the original Hipo driveshaft by 5/8". Had a vibration after awhile. In the meantime I ordered an aluminum driveshaft for Becks 66 convert with a T-5 and 8" rear. Just out of curiosity I tried to put it in my coupe with the 9" rear, it worked, don't have as much free play as it should. Of course had to get another driveshaft for Beck car. But, whatever you do, get a T-5 yoke, even though the toploader will work, less vibrations.Mike
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steve'66
Gearhead Posts: 5428
From: Sonoma,CA,USA
Registered: Mar 2000
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posted 04-04-2002 10:23 PM
Definately use the t-5 yoke! SteveW
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steve'66
Gearhead Posts: 5428
From: Sonoma,CA,USA
Registered: Mar 2000
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posted 04-04-2002 10:25 PM
And if you need a driveshaft custom built try Denny's driveshats. He does good work at very reasonable prices.SteveW
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68stang351
Gearhead Posts: 265
From: Savoy TX, USA
Registered: Mar 2002
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posted 04-05-2002 11:00 AM
thanks guys!! I actually have a yoke, crossmember, and a few other things that i bought as a conversion kit from Dallas Mustang. The yoke is for a T5 that will also use stock size u-joints. What I have now is a 3speed toploader. But now I'm confused between BillGear and Steve66. ------------------
Hoofbeats are louder than Heartbeats!
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steve'66
Gearhead Posts: 5428
From: Sonoma,CA,USA
Registered: Mar 2000
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posted 04-05-2002 11:46 AM
It depends on the length of your yoke and whether or not you have a 9" rear in the car. Also my experience was with a '66 so, after you get the tranny installed you'll see if it needs to be shortened or not. Good luck,SteveW
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67coupe
Gearhead Posts: 337
From: dallas NC usa
Registered: Nov 2000
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posted 04-07-2002 12:18 PM
i havent put the t5 it the convt yet but i haveput a c4 in a 90 model witha t5 driveshaft and it fit fine so the opposite should work too well good luck ------------------
Josh
67 coupe with 351c
94 Explorer
30 model A currently rustbucket
in process 67 convt with efi 5.0 and t5
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ccode67
Gearhead Posts: 1332
From: douglasville,ga,usa
Registered: Mar 2001
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posted 04-08-2002 08:56 AM
My 67 coupe came with a C-4 and 8 inch rear, 51 inch driveshaft measured center to center of u-joints.
Used the same shaft with the T-5 yoke when I swapped to the T-5, perfect fit.
The nine inch rear is 1 inch longer so the shaft will have to be shortened to 50 inches unless I use a short yoke on the rear end which is another option.
Hope this helps.------------------
Stuart MCA #48902
M&M #1091
67 stang 5 speed, 351W, Edelbrock Performer RPM package
91 f-150 xlt
98 explorer xlt sohc v-6
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68stang351
Gearhead Posts: 265
From: Savoy TX, USA
Registered: Mar 2002
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posted 04-08-2002 08:51 PM
thanks ccode, I think you just said what I want to hear, I don't think I should have to have it shortened, from all that I've gathered so far.------------------
Hoofbeats are louder than Heartbeats!
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ccode67
Gearhead Posts: 1332
From: douglasville,ga,usa
Registered: Mar 2001
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posted 04-09-2002 07:55 AM
You're welcome, All this info is still fresh in my mind, my swap was done less than 6 months ago and I'm helping a friend gather the parts for his, any questions, just yell and I'll try to answer.
------------------
Stuart MCA #48902
M&M #1091
67 stang 5 speed, 351W, Edelbrock Performer RPM package
91 f-150 xlt
98 explorer xlt sohc v-6
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