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Which manual valve body for 727? #1873949
07/19/15 11:30 PM
07/19/15 11:30 PM
Joined: Apr 2003
Posts: 153
VT
MOPARCRAZY Offline OP
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MOPARCRAZY  Offline OP
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VT
Tore down the tranny after what I figured was a sprag failure and it is toast. My current valve body doesn't have low band apply. Which low band apply manual reverse pattern body do you recommend?
Thanks for the help.
Lon

Re: Which manual valve body for 727? [Re: MOPARCRAZY] #1873971
07/19/15 11:51 PM
07/19/15 11:51 PM
Joined: Jul 2003
Posts: 3,377
Rancho Cordova, CA
Exit1965 Offline
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Exit1965  Offline
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Rancho Cordova, CA
oops! below is forward pattern, didn't see you wanted RVMB.


Turbo Action 17875XA

17875XA: CHEETAH XtremeAction Pro Street and Race Manual (PRN321)
The 17875XA has a safe clean neutral and no need to use a button to backup. A clean rear band apply and release making it a great race or street valve body and No roller clutch failure. Provides full manual control only. No automatic features. Maintains stock shift pattern. Allows full engine braking (slow down) of vehicle by down shifting. This valve body is great for Drag Racing, Rock Crawling, Mud Bogging, Sports Car Racing and Pro Street. Eliminates use of passing gear linkage.


Last edited by Exit1965; 07/22/15 11:47 PM.
Re: Which manual valve body for 727? [Re: MOPARCRAZY] #1873981
07/19/15 11:57 PM
07/19/15 11:57 PM
Joined: Jul 2012
Posts: 429
Washington
skrews Offline
mopar
skrews  Offline
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Posts: 429
Washington
A&A

Re: Which manual valve body for 727? [Re: MOPARCRAZY] #1874156
07/20/15 10:32 AM
07/20/15 10:32 AM
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Posts: 1,812
Portsmouth, VA
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DusterW2 Offline
top fuel
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Posts: 1,812
Portsmouth, VA
Griner Engineering

model # 1222G05B RMVB low band apply, high pressure

727specialist is a distributor

Re: Which manual valve body for 727? [Re: DusterW2] #1874169
07/20/15 10:54 AM
07/20/15 10:54 AM
Joined: Oct 2005
Posts: 1,305
Lakewood, Colorado
herkamer Offline
pro stock
herkamer  Offline
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Lakewood, Colorado
Originally Posted By DusterW2
Griner Engineering

model # 1222G05B RMVB low band apply, high pressure

727specialist is a distributor




FYI, out of stock with no foreseeable date in the future. I just talked to Keith on Friday about it.


Matt
69 Dart Swinger 340
83 W350, Megasquirted with 46RH
Old news: 72 Demon street/race mobile
Latest: 70 Duster backhalf car
and even more
Re: Which manual valve body for 727? [Re: MOPARCRAZY] #1874999
07/21/15 12:01 PM
07/21/15 12:01 PM
Joined: Jan 2003
Posts: 1,812
Portsmouth, VA
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DusterW2 Offline
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Portsmouth, VA
You could also try John Cope Racing Transmissions.

https://www.coperacingtrans.com/index.php?cPath=97_23&osCsid=500ebd8423a10f0acce084fd8f363f9d


PSRM-2 or CRT-22X models depending upon your HP level



https://www.facebook.com/CopeRacingTransmissions

Re: Which manual valve body for 727? [Re: Exit1965] #1875755
07/22/15 02:09 PM
07/22/15 02:09 PM
Joined: May 2003
Posts: 1,751
Graham, WA
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Polarapete Offline
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Posts: 1,751
Graham, WA
Years ago I used the Cheetah RMVB #17156, but I now like the idea of a forward pattern so that I could pop the trans into neutral at the end of the run and coast down (we have lots of shut down room where I will be racing again). Theoretically, that will save an engine, but I have yet to see it proven.


1986 Dodge Ramcharger 440 2wd, Bracket Racer Under Construction
1998 Ram 2500 QuadCab, new daily driver.
2008 Honda Element
2014 Carry-On 7x14 Cargo Trailer
Re: Which manual valve body for 727? [Re: MOPARCRAZY] #1875801
07/22/15 03:39 PM
07/22/15 03:39 PM
Joined: Aug 2012
Posts: 836
Up a holler, down a crick
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booger Offline
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Up a holler, down a crick
I picked one up not long ago from Coan, had to wait a couple weeks to get it though. http://www.coanracing.com/


Chasing bears through the woods drunk with a dull hatchet is strongly not advised
Re: Which manual valve body for 727? [Re: Exit1965] #1875949
07/22/15 06:17 PM
07/22/15 06:17 PM
Joined: Jan 2003
Posts: 6,531
Jacksonville, FL
Chris2581 Offline
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Chris2581  Offline
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Jacksonville, FL
Originally Posted By Exit1965
Turbo Action 17875XA

17875XA: CHEETAH XtremeAction Pro Street and Race Manual (PRN321)
The 17875XA has a safe clean neutral and no need to use a button to backup. A clean rear band apply and release making it a great race or street valve body and No roller clutch failure. Provides full manual control only. No automatic features. Maintains stock shift pattern. Allows full engine braking (slow down) of vehicle by down shifting. This valve body is great for Drag Racing, Rock Crawling, Mud Bogging, Sports Car Racing and Pro Street. Eliminates use of passing gear linkage.



This is what I'd use. Turbo Action makes very good products.


Nautilus Racing-
We use Superformance gaskets and Turbo Action converters/products.
Re: Which manual valve body for 727? [Re: MOPARCRAZY] #1876089
07/22/15 09:33 PM
07/22/15 09:33 PM
Joined: Nov 2010
Posts: 3,696
jersey
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Spaceman Spiff Offline
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jersey
i went with a Cope RMVB.
But i have a '65 Cable shift trans in my car, so i can keep the push buttons.


526 cubes of angry wedge, pushbutton shifted, 9 passenger killer!
Re: Which manual valve body for 727? [Re: Spaceman Spiff] #1876120
07/22/15 10:20 PM
07/22/15 10:20 PM
Joined: May 2007
Posts: 1,675
Mi.
G-Money1320 Offline
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Mi.
So will a FMVB non LBA valve body wear out a trans faster? I have one in my street car that sees occasional track duty.


416 stroker from Nick at Compu-flow. 11.14 in full street trim. Seems like a new best every time out.
11.06 open headers----so far!!
Re: Which manual valve body for 727? [Re: MOPARCRAZY] #1877795
07/25/15 12:25 PM
07/25/15 12:25 PM
Joined: Apr 2003
Posts: 153
VT
MOPARCRAZY Offline OP
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MOPARCRAZY  Offline OP
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Posts: 153
VT
Thank you for the input. I ordered an A&A. Robert was very helpful when I called so I went with them.
Thanks again for the replies.
Lon

Re: Which manual valve body for 727? [Re: G-Money1320] #1877799
07/25/15 12:32 PM
07/25/15 12:32 PM
Joined: Apr 2003
Posts: 153
VT
MOPARCRAZY Offline OP
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MOPARCRAZY  Offline OP
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Joined: Apr 2003
Posts: 153
VT
It wont wear it out faster. The issue without low band apply is that low gear is all relying on the sprag. If/when it fails the front drum will overspeed and many times explodes. I was lucky my front drum didn't fail but still changed it. A lot depends also on weight of the car, torque, and 60 foot times. I ran without the low band apply for a long time. This is the first sprag I had fail but at 680 ft lbs torque, 3500 lbs car, and 1.29 60 foot, low band apply was overdue.







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