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Billet Servos 727(update) WITH PICS
#913037
01/24/11 08:04 PM
01/24/11 08:04 PM
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Joined: Feb 2005
Posts: 2,709
NJ central
Scamp408
OP
master
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OP
master
Joined: Feb 2005
Posts: 2,709
NJ central
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Is it worth putting them in?
I have the kit from my brothers trans just thinking about doing it.
Last edited by scamp408; 01/28/11 08:10 AM.
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Re: Billet Servos 727
[Re: Scamp408]
#913038
01/24/11 08:09 PM
01/24/11 08:09 PM
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Joined: Feb 2007
Posts: 5,080
organ
maximum entropy
master
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master
Joined: Feb 2007
Posts: 5,080
organ
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piece of mind if you're running high line pressure. i have billet in mine. the front servo seals better with the improved o ring arrangement also.
for what is the good life if not doing things thoughtfully?
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Re: Billet Servos 727
[Re: dOrk !]
#913040
01/24/11 08:20 PM
01/24/11 08:20 PM
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Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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Quote:
x2 ... on a high-pressure application. But on a foot-brake(no trans brake) combo ....save your money.
In the 518 its plastic so I went with billet alum
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Re: Billet Servos 727
[Re: Scamp408]
#913042
01/24/11 08:29 PM
01/24/11 08:29 PM
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Joined: Feb 2007
Posts: 5,080
organ
maximum entropy
master
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master
Joined: Feb 2007
Posts: 5,080
organ
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manual vb, i'd do it. it'll just be a matter of time before it cracks the rear servo.
for what is the good life if not doing things thoughtfully?
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Re: Billet Servos 727
[Re: 440Jim]
#913045
01/25/11 11:51 AM
01/25/11 11:51 AM
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Joined: Aug 2005
Posts: 760
Southington Ct.
turbobitt
super stock
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super stock
Joined: Aug 2005
Posts: 760
Southington Ct.
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They are worth the expense for more than one reason.
The aftermarket front servos uasually have an o-ring seal in the cover for the band actuation shaft. This helps minimize leaks due to old worn out covers and maintain direct clutch pressure.
Obviously the strength is another benifit.
Allan G.
1970 Challenger w/572 Hemi street car and my pride and joy.
1986 T-Type with 272 Stage 2 Buick V6 engine - True 8 second street car. Just updated the engine and put down 928 HP @ 35# boost to the ground on chasis dyno.
1976 Cee Bee Avenger Jet Boat - 460 Ford powered.
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Re: Billet Servos 727
[Re: Scamp408]
#913051
01/26/11 08:45 PM
01/26/11 08:45 PM
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Joined: Oct 2006
Posts: 387
Montreal PQ, Canada
74_360_Cuda
enthusiast
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enthusiast
Joined: Oct 2006
Posts: 387
Montreal PQ, Canada
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Quote:
Good thing I decided to do this.I took the pan off today and was poking around and what did I come to find the steel spring holder was bent on the low/rev piston.If I left it I think it would blow out good news is the pan and filter look clean just the normal crud.
If I am not mistaking I think my rear billet servo came with a HD retainer...
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Re: Billet Servos 727
[Re: 74_360_Cuda]
#913052
01/26/11 10:41 PM
01/26/11 10:41 PM
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Joined: Feb 2003
Posts: 12,675
Columbia, CT
moper
I Live Here
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I Live Here
Joined: Feb 2003
Posts: 12,675
Columbia, CT
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Randy's the best. Doesnt surprise me in the least.
Well, art is art, isn't it? Still, on the other hand, water is water! And east is east and west is west and if you take cranberries and stew them like applesauce they taste much more like prunes than rhubarb does. Now, uh... Now you tell me what you know.
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Re: Billet Servos 727
[Re: dOrk !]
#913053
01/26/11 11:46 PM
01/26/11 11:46 PM
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Joined: Sep 2003
Posts: 1,236
Fairview Tennessee
SV_MOPARS
pro stock
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pro stock
Joined: Sep 2003
Posts: 1,236
Fairview Tennessee
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Quote:
x2 ... on a high-pressure application. But on a foot-brake(no trans brake) combo ....save your money.
you forgot traffic signature, i live my life here being held hostage by traffic, do yourself a favor where ever your at stay there, you are much better off! trust me.
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Re: Billet Servos 727
[Re: SV_MOPARS]
#913054
01/27/11 08:29 PM
01/27/11 08:29 PM
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Joined: Feb 2005
Posts: 2,709
NJ central
Scamp408
OP
master
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OP
master
Joined: Feb 2005
Posts: 2,709
NJ central
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Got it apart today and the retainer is all bent also the old servo piston has the spring installed and no spacer to make it solid.Befor i had the trans built I did a shift kit and installed the spacer i guess the trans shop changed it. What do you guys think why would you leave it in the stk configuration?
Last edited by scamp408; 01/28/11 08:08 AM.
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Re: Billet Servos 727
[Re: Scamp408]
#913056
01/28/11 11:54 AM
01/28/11 11:54 AM
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Joined: Jan 2003
Posts: 75,008
U.S.S.A.
JohnRR
I Win
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I Win
Joined: Jan 2003
Posts: 75,008
U.S.S.A.
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Quote:
Which spring should I use ? the one on the right is what came out and the left is the new one but it looks canted.
Use the new one , the cant shouldn't be an issue as it is compressed when installed.
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Re: Billet Servos 727
[Re: Scamp408]
#913058
01/28/11 02:41 PM
01/28/11 02:41 PM
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Joined: Jan 2003
Posts: 16,925
NC
440Jim
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 16,925
NC
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The stock retainer for the rear servo is very thin, and often gets bent. The kit from mrrandy comes with a much thicker, stronger, retainer. IMO, I would use the new spring; especially if that is the one from mrrandy. It should be, and apprears from your picture, to be stiffer than the stock one. That should help the band release during the 1-2 shift (low band apply valve bodies). As far as the trans shop taking the shims out of the servo, that stock configuration will cushion the servo/band apply. And since the stock valve body makes real high pressure going into reverse, and the rear servo gets engaged in reverse, they might be trying to ease that application. This is why it is important to go all the way to idle when putting a torqueflite in reverse. However, in a race application, shimming it solid will improve the servo release during the 1-2 shift. 
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Re: Billet Servos 727
[Re: 440Jim]
#913059
01/28/11 02:47 PM
01/28/11 02:47 PM
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Joined: Feb 2007
Posts: 5,080
organ
maximum entropy
master
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master
Joined: Feb 2007
Posts: 5,080
organ
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Quote:
The stock retainer for the rear servo is very thin, and often gets bent. The kit from mrrandy comes with a much thicker, stronger, retainer.
IMO, I would use the new spring; especially if that is the one from mrrandy. It should be, and apprears from your picture, to be stiffer than the stock one. That should help the band release during the 1-2 shift (low band apply valve bodies).
As far as the trans shop taking the shims out of the servo, that stock configuration will cushion the servo/band apply. And since the stock valve body makes real high pressure going into reverse, and the rear servo gets engaged in reverse, they might be trying to ease that application. This is why it is important to go all the way to idle when putting a torqueflite in reverse. However, in a race application, shimming it solid will improve the servo release during the 1-2 shift.
for what is the good life if not doing things thoughtfully?
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Re: Billet Servos 727
[Re: maximum entropy]
#913062
01/28/11 06:18 PM
01/28/11 06:18 PM
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Joined: Jan 2003
Posts: 25,796
Rio Linda, CA
John_Kunkel
Too Many Posts
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Too Many Posts
Joined: Jan 2003
Posts: 25,796
Rio Linda, CA
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The stock spring has an installed pressure of 15 pounds, with 1/2" of piston travel the pressure increases to 33 pounds.
The stiffer spring has an installed pressure of 37 pounds and increases to 77 pounds with 1/2" of travel.
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