727 Trans Expert Needed
#3146219
05/22/23 05:13 PM
05/22/23 05:13 PM
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Joined: Feb 2009
Posts: 1,149 NW New Jersey
RSI700VIPER
OP
super stock
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OP
super stock
Joined: Feb 2009
Posts: 1,149
NW New Jersey
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I have a good working 727 trans out of a '78 Dodge truck with a 318 that I installed in a hopped up 1972 Challenger with a 340. All external band and linkage adjustments have been checked and kickdown lever is set to hit the back of the stop at WOT. Problem is the max shift point I can coax out of the trans is about 5000 RPMs while leaving shifter in drive. I'd like to raise the shift points closer to 6000 RPMs. Do I need to swap out and install a performance valve body, or governor weight, or is there something else I can do to raise shift points?
1970 Superbird 440 Six BBL, 4-Speed, Dana, FJ5 1969 Daytona Charger 440 4-Speed, Dana, EV2 1971 340 Challenger Conv. Flemington Speedway Pace Car, FC7 1970 340 Six Pack Callenger T/A 4-speed T8 Tan 1971 340 Challenger RT Formal Roof, EV2 w/ V2 Stripe & Orange Houndstooth 1969 Talladega Torino, 428CJ 1969 Gurney Special Cyclone Spoiler II, 351 Cleveland
"Id rather have a bottle in front of me than a frontal lobotomy" Ben Franklin 1755
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Re: 727 Trans Expert Needed
[Re: BloFish]
#3146342
05/23/23 09:25 AM
05/23/23 09:25 AM
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Joined: Dec 2013
Posts: 4,700 Wichita
GY3
master
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master
Joined: Dec 2013
Posts: 4,700
Wichita
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The Trans-Go TF-2 kit will let you manually shift at whatever rpm you choose.
If you want it to shift at 6k rpm on its own (while in Drive) get the lighter weight governor kit from A&A.
'63 Dodge 330 11.19 @ 121 mph Pump gas, n/a, through the mufflers on street tires with 3.54's. 3,600 lbs. 10.01 @ 133mph with a 250 shot of nitrous an a splash of race gas. 1.36 60 ft. 3,700 lbs.
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Re: 727 Trans Expert Needed
[Re: GY3]
#3146428
05/23/23 04:28 PM
05/23/23 04:28 PM
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Joined: Feb 2009
Posts: 1,149 NW New Jersey
RSI700VIPER
OP
super stock
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OP
super stock
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NW New Jersey
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I think my problem is deeper than I originally thought. Took it out for the first time this year and with the pedal smashed to the floor, 1-2 upshift occurs at 2700 RPMs and 2-3 upshift occurs at 3200 RPMs. Checked kickdown lever and it's all the way back to the stop. Going to check line pressure next to see if pump is okay. Any other suggestions?
1970 Superbird 440 Six BBL, 4-Speed, Dana, FJ5 1969 Daytona Charger 440 4-Speed, Dana, EV2 1971 340 Challenger Conv. Flemington Speedway Pace Car, FC7 1970 340 Six Pack Callenger T/A 4-speed T8 Tan 1971 340 Challenger RT Formal Roof, EV2 w/ V2 Stripe & Orange Houndstooth 1969 Talladega Torino, 428CJ 1969 Gurney Special Cyclone Spoiler II, 351 Cleveland
"Id rather have a bottle in front of me than a frontal lobotomy" Ben Franklin 1755
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Re: 727 Trans Expert Needed
[Re: RSI700VIPER]
#3146610
05/24/23 01:20 PM
05/24/23 01:20 PM
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Joined: Jan 2003
Posts: 25,967 Rio Linda, CA
John_Kunkel
Too Many Posts
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Too Many Posts
Joined: Jan 2003
Posts: 25,967
Rio Linda, CA
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With the throttle lever full back is the stop firm? On rare occasions the weld at the end of the throttle lever shaft will break loose from the cam and cause early shifts.
The INTERNET, the MISinformation superhighway
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Re: 727 Trans Expert Needed
[Re: John_Kunkel]
#3146883
05/26/23 07:58 AM
05/26/23 07:58 AM
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Joined: Feb 2009
Posts: 1,149 NW New Jersey
RSI700VIPER
OP
super stock
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OP
super stock
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Feels pretty firm to me but I'll double check. I ordered the T2 kit and will try installing it this weekend. Figured I'd replace the shifter shaft seal while I'm at it. Anything I should be looking for while I have the Valve Body out?
1970 Superbird 440 Six BBL, 4-Speed, Dana, FJ5 1969 Daytona Charger 440 4-Speed, Dana, EV2 1971 340 Challenger Conv. Flemington Speedway Pace Car, FC7 1970 340 Six Pack Callenger T/A 4-speed T8 Tan 1971 340 Challenger RT Formal Roof, EV2 w/ V2 Stripe & Orange Houndstooth 1969 Talladega Torino, 428CJ 1969 Gurney Special Cyclone Spoiler II, 351 Cleveland
"Id rather have a bottle in front of me than a frontal lobotomy" Ben Franklin 1755
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Re: 727 Trans Expert Needed
[Re: RSI700VIPER]
#3146889
05/26/23 08:56 AM
05/26/23 08:56 AM
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Joined: Jan 2003
Posts: 75,092 A Banana Republic near you.
JohnRR
I Win
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I Win
Joined: Jan 2003
Posts: 75,092
A Banana Republic near you.
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Feels pretty firm to me but I'll double check. I ordered the T2 kit and will try installing it this weekend. Figured I'd replace the shifter shaft seal while I'm at it. Anything I should be looking for while I have the Valve Body out? Get the govenor weights , it's still going to shift lower than you'd like .
running up my post count some more .
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Re: 727 Trans Expert Needed
[Re: RSI700VIPER]
#3146894
05/26/23 09:25 AM
05/26/23 09:25 AM
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Joined: Feb 2003
Posts: 2,815 Sobieski Wi
bee1971
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master
Joined: Feb 2003
Posts: 2,815
Sobieski Wi
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Double check to make sure your low/reverse band servo shaft 30 cent o ring is not leaking on the backside of transmission while you have the valve body out
You just have to remove the transmission mount and six bolts for tail shaft housing and rotate the tail shaft slightly to clear the tab
Just did this on my 71 Superbee after the transmission shop did not replace that o ring five years ago - It was hard and brittle Fun laying on my back in the garage
Amazing how much of a mess that little o ring can leave on the garage floor after a winter hibernation
Trans shop did give me the o rings for free along with a newer servo shaft out of an overdrive transmission with double grooves or two o rings
Not a drop since but not a fun job to say the least on your back
1971 Dodge Charger Superbee 2011 Ram Sport 1500 Quad Cab Deep Water Blue Loaded Siberian Huskies
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Re: 727 Trans Expert Needed
[Re: bee1971]
#3147047
05/27/23 11:56 AM
05/27/23 11:56 AM
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Joined: Feb 2009
Posts: 1,149 NW New Jersey
RSI700VIPER
OP
super stock
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OP
super stock
Joined: Feb 2009
Posts: 1,149
NW New Jersey
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Double check to make sure your low/reverse band servo shaft 30 cent o ring is not leaking on the backside of transmission while you have the valve body out
You just have to remove the transmission mount and six bolts for tail shaft housing and rotate the tail shaft slightly to clear the tab
Where is this located? Pictures?
1970 Superbird 440 Six BBL, 4-Speed, Dana, FJ5 1969 Daytona Charger 440 4-Speed, Dana, EV2 1971 340 Challenger Conv. Flemington Speedway Pace Car, FC7 1970 340 Six Pack Callenger T/A 4-speed T8 Tan 1971 340 Challenger RT Formal Roof, EV2 w/ V2 Stripe & Orange Houndstooth 1969 Talladega Torino, 428CJ 1969 Gurney Special Cyclone Spoiler II, 351 Cleveland
"Id rather have a bottle in front of me than a frontal lobotomy" Ben Franklin 1755
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Re: 727 Trans Expert Needed
[Re: RSI700VIPER]
#3147048
05/27/23 11:58 AM
05/27/23 11:58 AM
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Joined: Feb 2009
Posts: 1,149 NW New Jersey
RSI700VIPER
OP
super stock
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OP
super stock
Joined: Feb 2009
Posts: 1,149
NW New Jersey
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TF-2 will arrive today. I'll start with that and if shift points don't improve enough, I'll change the gov weights.
1970 Superbird 440 Six BBL, 4-Speed, Dana, FJ5 1969 Daytona Charger 440 4-Speed, Dana, EV2 1971 340 Challenger Conv. Flemington Speedway Pace Car, FC7 1970 340 Six Pack Callenger T/A 4-speed T8 Tan 1971 340 Challenger RT Formal Roof, EV2 w/ V2 Stripe & Orange Houndstooth 1969 Talladega Torino, 428CJ 1969 Gurney Special Cyclone Spoiler II, 351 Cleveland
"Id rather have a bottle in front of me than a frontal lobotomy" Ben Franklin 1755
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Re: 727 Trans Expert Needed
[Re: moparx]
#3147148
05/27/23 11:15 PM
05/27/23 11:15 PM
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Joined: Jan 2003
Posts: 15,498 Omaha Ne
TJP
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 15,498
Omaha Ne
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please pick up the book : Torqueflight A-727, Transmission Handbook [How to rebuild or modify Chrysler's A-727 Torqueflight for all applications] by Carl H. Munroe. it's a great handbook, and does a step by step TF-2 installation with pictures, starting on page 165. it also details the rebuild process, as well as anything else you may want to learn about this transmission. well worth the price. https://www.amazon.com/Torqueflite-727-Transmission-Handbook-HP1399/dp/1557883998/ref=sr_1_2? might well be good advice as Trans go's Instructions used to be like walking a drunk duck. Loved the kits, but the instructions should have been written for a Dyson or Shark as they Sucked real well. Maybe they've redone them
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Re: 727 Trans Expert Needed
[Re: TJP]
#3147376
05/29/23 09:26 AM
05/29/23 09:26 AM
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Joined: Mar 2006
Posts: 9,871 MI, usa
dvw
master
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master
Joined: Mar 2006
Posts: 9,871
MI, usa
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please pick up the book : Torqueflight A-727, Transmission Handbook [How to rebuild or modify Chrysler's A-727 Torqueflight for all applications] by Carl H. Munroe. it's a great handbook, and does a step by step TF-2 installation with pictures, starting on page 165. it also details the rebuild process, as well as anything else you may want to learn about this transmission. well worth the price. https://www.amazon.com/Torqueflite-727-Transmission-Handbook-HP1399/dp/1557883998/ref=sr_1_2? might well be good advice as Trans go's Instructions used to be like walking a drunk duck. Loved the kits, but the instructions should have been written for a Dyson or Shark as they Sucked real well. Maybe they've redone them I've found Trans Go's instructions very easy. Their tech line is great as well. Doug
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