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904 tail shaft housing same as 727? #653112
03/27/10 10:48 PM
03/27/10 10:48 PM
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North Texas
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1AARCUDA Offline OP
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Broke my tailshaft housing on my 727, is a 904 housing the same? I have a parts car with a 904 I can pull out.


1970 AAR CUDA 1970 Super Bee 383 Auto 1969 Super Bee 383 4Spd 1968 Satellite 500 Stroker 1986 Shelby GLHS 1970 Coronet 500 383 Auto 1996 Indy Pace Truck 1998 Dakota R/T 408 Stroker
Re: 904 tail shaft housing same as 727? [Re: 1AARCUDA] #653113
03/27/10 10:50 PM
03/27/10 10:50 PM
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BROOK PARK, OH
WILD BILL Offline
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No, the 904 is shorter.


Any 727 one will work though. Big or small block the tail housing s are the same.

Last edited by WILD BILL; 03/27/10 10:52 PM.
Re: 904 tail shaft housing same as 727? [Re: WILD BILL] #653114
03/27/10 10:55 PM
03/27/10 10:55 PM
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Mooresburg, Tn
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'72CudaRacer Offline
top fuel
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Mooresburg, Tn
Tell everyone how you know, Bill

Re: 904 tail shaft housing same as 727? [Re: '72CudaRacer] #653115
03/27/10 11:06 PM
03/27/10 11:06 PM
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BROOK PARK, OH
WILD BILL Offline
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Quote:

Tell everyone how you know, Bill






I think everyone already knows

Re: 904 tail shaft housing same as 727? [Re: 1AARCUDA] #653116
03/27/10 11:07 PM
03/27/10 11:07 PM
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Posts: 502
North Texas
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1AARCUDA Offline OP
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Ok, Thanks! I will start the hunt on monday!


1970 AAR CUDA 1970 Super Bee 383 Auto 1969 Super Bee 383 4Spd 1968 Satellite 500 Stroker 1986 Shelby GLHS 1970 Coronet 500 383 Auto 1996 Indy Pace Truck 1998 Dakota R/T 408 Stroker
Re: 904 tail shaft housing same as 727? [Re: 1AARCUDA] #653117
03/28/10 07:18 AM
03/28/10 07:18 AM
Joined: Dec 2004
Posts: 1,489
St. Louis Mo.
10 o to go Offline
"Happy Don"
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St. Louis Mo.
How and when where did it brake ? if it was in 1st gear might have taken the sprag . Might be ok if ujoint or something else caused it.
Don


2009 418" build dan smith built new 9.96 131.82 6.23 108 1.30 60 foot best to date 9/15/09 8in 727 430 dana 2860 lb 3040 lb w driver
Re: 904 tail shaft housing same as 727? [Re: 1AARCUDA] #653118
03/28/10 09:50 AM
03/28/10 09:50 AM
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North Texas
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1AARCUDA Offline OP
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This is my second housing to break or crack rather, I am thinking my driveshaft may be to long and when my rear winds up its shoving it into the rear of the trans, I have not had a chance to pull the driveshaft apart car is still on the trailer. I noticed a vibration after my run slowing it down and on the return lane, got it in the pits and noticed tranny fluid leaking


1970 AAR CUDA 1970 Super Bee 383 Auto 1969 Super Bee 383 4Spd 1968 Satellite 500 Stroker 1986 Shelby GLHS 1970 Coronet 500 383 Auto 1996 Indy Pace Truck 1998 Dakota R/T 408 Stroker
Re: 904 tail shaft housing same as 727? [Re: 1AARCUDA] #653119
03/28/10 09:58 AM
03/28/10 09:58 AM
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Florida
Locomotion Offline
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Check your trans mount bushing and pinion angle also just to cover all the bases.

Re: 904 tail shaft housing same as 727? [Re: 1AARCUDA] #653120
03/28/10 10:06 AM
03/28/10 10:06 AM
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North Texas
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1AARCUDA Offline OP
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Good advice Thank you!


1970 AAR CUDA 1970 Super Bee 383 Auto 1969 Super Bee 383 4Spd 1968 Satellite 500 Stroker 1986 Shelby GLHS 1970 Coronet 500 383 Auto 1996 Indy Pace Truck 1998 Dakota R/T 408 Stroker
Re: 904 tail shaft housing same as 727? [Re: 1AARCUDA] #653121
03/28/10 12:05 PM
03/28/10 12:05 PM
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SE PA.
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QuickBpBp Offline
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Quote:

This is my second housing to brake or crack rather, I am thinking my driveshaft may be to long and when my rear winds up its shoving it into the rear of the trans, I have not had a chance to pull the driveshaft apart car is still on the trailer. I noticed a vibration after my run slowing it down and on the return line, got it in the pits and noticed tranny fluid leaking




If you have old leafsprings this could be doing it too. I knew a car that did this. The pinion angle was fine,tranny mount was fine,driveshaft was fine. Springs were weak and moving the pinion angle all over during the launch,shifts,burn-outs etc...Put a new set of springs in with the 4th tail shaft and it never broke again and never got that ugly vibration again....

Re: 904 tail shaft housing same as 727? [Re: 1AARCUDA] #653122
03/28/10 01:12 PM
03/28/10 01:12 PM
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North Texas
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1AARCUDA Offline OP
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I bet its my driveshaft being to long, its the same one that was with my 904 and it has a shorter tailshaft then...


1970 AAR CUDA 1970 Super Bee 383 Auto 1969 Super Bee 383 4Spd 1968 Satellite 500 Stroker 1986 Shelby GLHS 1970 Coronet 500 383 Auto 1996 Indy Pace Truck 1998 Dakota R/T 408 Stroker
Re: 904 tail shaft housing same as 727? [Re: 1AARCUDA] #653123
03/28/10 01:19 PM
03/28/10 01:19 PM
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Florida
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You would have had to swap out the slip yokes because they don't interchange. I forgot the difference in length, but I think it's like 1.5 - 2" between tailshafts? My driveshafts have maybe 1.5 to 2" max extra travel into the transmission from their seated position in the rear end yoke.

Re: 904 tail shaft housing same as 727? [Re: 1AARCUDA] #653124
03/28/10 01:19 PM
03/28/10 01:19 PM
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BROOK PARK, OH
WILD BILL Offline
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Quote:

I bet its my driveshaft being to long, its the same one that was with my 904 and it has a shorter tailshaft then...






I'm surprised you got it to fit in there

You need to find a 727 shaft you have yours cut down.

Re: 904 tail shaft housing same as 727? [Re: 1AARCUDA] #653125
03/28/10 01:40 PM
03/28/10 01:40 PM
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North Texas
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1AARCUDA Offline OP
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Hmmm, then I have no clue where I got this driveshaft, I thought it was the same one that came with the 318/904 setup. But i will get a good measurement when I pull the housing off.


1970 AAR CUDA 1970 Super Bee 383 Auto 1969 Super Bee 383 4Spd 1968 Satellite 500 Stroker 1986 Shelby GLHS 1970 Coronet 500 383 Auto 1996 Indy Pace Truck 1998 Dakota R/T 408 Stroker
Re: 904 tail shaft housing same as 727? [Re: 1AARCUDA] #653126
03/28/10 10:49 PM
03/28/10 10:49 PM
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Saskatchewan, Canada
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barracudabob Offline
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When mine broke, I had the driveshaft checked and it was out a touch. They straightened/balanced it, and no problems since. This is on a low 10 second car.

Re: 904 tail shaft housing same as 727? [Re: 1AARCUDA] #653127
03/29/10 09:16 AM
03/29/10 09:16 AM
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Ontario, Canada
Dodgem Offline
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I broke a couple and my drive shaft was a little too short had a new one made and never a problem since. I had the first shaft made when the car had longer shackles on the back and when i went stock shackles and new springs it moved the rear end back a 1/2" or so.
I used this guide then you measure slip yoke u joint center to rear end yoke u joint center.

5894004-727dimensions.JPG (783 downloads)
Re: 904 tail shaft housing same as 727? [Re: 1AARCUDA] #653128
03/29/10 10:42 AM
03/29/10 10:42 AM
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North Texas
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1AARCUDA Offline OP
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Thanks for all the knowledge and advice. I will get it figured out.


1970 AAR CUDA 1970 Super Bee 383 Auto 1969 Super Bee 383 4Spd 1968 Satellite 500 Stroker 1986 Shelby GLHS 1970 Coronet 500 383 Auto 1996 Indy Pace Truck 1998 Dakota R/T 408 Stroker






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