Transmissions and Drivetrain Need help with your trans? Problems with your axle?

B&M Megashifter

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Old Dec 18, 2005 | 09:36 PM
  #1  
1320_Guy's Avatar
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From: Baton Rouge, LA
Car: 89 RS
Engine: 305
Transmission: th350
B&M Megashifter

Ok i have a megashifter in my car. It has been a wile since i have acturaly looked at it. Is there any way i can modify it so when i pull the lever i can go from park/or reverse to 1st. I dont like goin down to D and then 2 then 1. The main reason i am asking is i am planing on puting a manual valvebody in the trans and it dosent seem like the trans would like going into 3rd first sitting still
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Old Dec 21, 2005 | 07:58 PM
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From: Baton Rouge, LA
Car: 89 RS
Engine: 305
Transmission: th350
anyone know?
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Old Dec 24, 2005 | 02:20 AM
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From: BENSALEM, PA
Car: 88 FORMULA / 88 IROC
Engine: 355 / 355
Transmission: T5 / TH400
Axle/Gears: 10 Bolt-3.73 / 9"-3.90
When you do the manual valve body, install a reverse pattern unit that way what used to be third will now be first and you will pull back instead of pushing forward for each following shift.. Make sense?
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Old Dec 24, 2005 | 10:52 AM
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From: Oregon
Car: 94 Trans Am
Engine: LT-!
Transmission: Auto
Axle/Gears: 3.42
Originally posted by FORMULA355TPI
When you do the manual valve body, install a reverse pattern unit that way what used to be third will now be first and you will pull back instead of pushing forward for each following shift.. Make sense?
Thats a good idea but i didnt like not being able to go from 3rd to N without going thru the rest of the gears. when i got thru with a run i like to just pop it in to N
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Old Dec 24, 2005 | 11:12 AM
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Don 79 TA's Avatar
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From: Long Island NY
Car: Hers: 88 Formula 350
Engine: TPI
Transmission: Auto
Axle/Gears: 10 bolt Posi
i don't think there is a way without modifying the gates yourself
it's designed to do that to prevent mis-shifts and what not
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Old Dec 25, 2005 | 12:52 AM
  #6  
FORMULA355TPI's Avatar
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From: BENSALEM, PA
Car: 88 FORMULA / 88 IROC
Engine: 355 / 355
Transmission: T5 / TH400
Axle/Gears: 10 Bolt-3.73 / 9"-3.90
Going from third to neutral is a good way to grenade your transmission espically a th400. At the end of the run you should be leaving your car in third until you can slow it enough to downshift. If you are really serious about a consistant drag car you should probably get rid of the p.o.s. megashifter and get a quarter stick, cheetah, or bandit. they are much more accurate and reliable.
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Old Dec 25, 2005 | 10:17 AM
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Digger's Avatar
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From: Saskatchewan,Canada
I have the Mega shifter and the revers manual valve body and my car will actully free wheel when I shift it through second and first to neutral. So it does not hurt it any. I dont know if they are all like that but thats my experience with them.


Digger
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