Posted By: Milan
904 vs 727 - 08/30/09 11:37 AM
Is these a difference in the bellhousing bolt pattern on a 904 trans vs a 727 trans?
Thanks
Milan
Thanks
Milan
904 vs 727
Posted By: codfish
Re: 904 vs 727 - 08/30/09 11:47 AM
A smallblock 727 and a smallblock 904 would be the same, but a bigblock 727 would be different. No bigblock 904s.
codfish
codfish
Posted By: Otherlane
Re: 904 vs 727 - 08/30/09 12:35 PM
So true! there's weight difference
Posted By: mopar346
Re: 904 vs 727 - 08/30/09 12:54 PM
Isn't there a differences in the amount of HP it takes to run it. 904 being less??
Posted By: 408Dust
Re: 904 vs 727 - 08/30/09 01:16 PM
904 is faster and so much easier to remove then a pig 727.Wish I had started with the 904 to begin with.
Posted By: S/ST 3040
Re: 904 vs 727 - 08/30/09 03:03 PM
Quote:
Isn't there a differences in the amount of HP it takes to run it. 904 being less??
Parasitic HP
Posted By: emarine01
Re: 904 vs 727 - 08/30/09 03:27 PM
Hummm 
Maybe thats why most everyone has gone glide that is competitive in the mud 
I guess I need to find out if a glide for a 4x4 has the same output shaft as a 727< doughtfull> 
Maybe thats why most everyone has gone glide that is competitive in the mud I guess I need to find out if a glide for a 4x4 has the same output shaft as a 727< doughtfull>
Posted By: Locomotion
Re: 904 vs 727 - 08/30/09 04:21 PM
Quote:
Hummm
Careful, you'll probably need to tweak the engine, converter and final gear to optimize them for use with only 2 speeds!
Posted By: emarine01
Re: 904 vs 727 - 08/30/09 04:57 PM
Yeah, I will have to change everything, A 904 may be better choice, my 727 is due this winter to go thru and an extra 20 to the wheels sounds good to me 
We plan on upin the power back up between 650 /675 and 600ft lbs, will a 904 with basic mods clutches / bands / sprag take it? Got to remember we mud race so we dont torque up on the parts like drag racing
We plan on upin the power back up between 650 /675 and 600ft lbs, will a 904 with basic mods clutches / bands / sprag take it? Got to remember we mud race so we dont torque up on the parts like drag racing
Posted By: emarine01
Re: 904 vs 727 - 08/30/09 06:48 PM
Anybody have any pix of a 727 and a 904, seems like they look close to the same?
Posted By: 70AARcuda
Re: 904 vs 727 - 08/30/09 07:07 PM
Quote:
Anybody have any pix of a 727 and a 904, seems like they look close to the same?
pick them up...you will "feel" which one is the 904...
Posted By: 408Dust
Re: 904 vs 727 - 08/30/09 10:34 PM
30lb. difference.
Posted By: emarine01
Re: 904 vs 727 - 08/30/09 10:44 PM
Hummm 20 HP and 30 lbs 
, ok and the down side is.......?
, ok and the down side is.......?
Posted By: 408Dust
Re: 904 vs 727 - 08/30/09 10:52 PM
Cost of the billet 1350 yoke,215.00 from Mark Williams and a new drive shaft other then that I'm happy with the change.
Posted By: hemidup
Re: 904 vs 727 - 08/30/09 11:19 PM
We're putting a Lofgren built 904 in our 71 Duster project. Its lighter and efficient.
Posted By: emarine01
Re: 904 vs 727 - 08/30/09 11:56 PM
Ive got good yokes on my T case , is the 904 longer or shorter not counting the tail shaft? I will have to do 2 shafts if its off by more than 1 inch, can a 904 handle 600 ft lbs @ 5300?
Posted By: 408Dust
Re: 904 vs 727 - 08/31/09 12:02 AM
904 is much shorter.
Call Dave at Pro trans 1-661-940-7400.
Call Dave at Pro trans 1-661-940-7400.
Posted By: cogen80
Re: 904 vs 727 - 08/31/09 12:03 AM
Quote:
Anybody have any pix of a 727 and a 904, seems like they look close to the same?
904 will be shorter and not as fat around the middle.
Posted By: emarine01
Re: 904 vs 727 - 08/31/09 12:31 AM
What about input / out put shaft size - Dia- is a 904 light duty compared to my Porkflite? it may be heavy but it is one of the few drive line parts I haven't broke in 3 years racing