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Old 05-08-2013, 04:58 PM
John Milner's Avatar
John Milner John Milner is offline
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Default G-Body 4 speed Conversion

I'm converting a G body to a 4 speed. I will be using a Muncie 4 speed and hust shifter. Does anyone know what shifter linkage will work with a Muncie for a G body without having to cut the transmission tunnel up?

I am thinking about ordering up a shifter installation kit for a '65-'66 GTO. Has anyone used any shifter linkage in particular when converting to a Muncie?

Thanks

  #2  
Old 05-09-2013, 03:08 PM
Ken K Ken K is offline
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You have to cut the tunnel unless you are using a Saginaw 4 speed. There is no way around it.

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Old 05-09-2013, 11:01 PM
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John Milner John Milner is offline
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I have no problem hacking up the floor for the 4 speed shifter porch, but you're saying that there isn't enough room for stock GTO or Firebird shifter linkage to clear the tunnel with a Muncie?

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Old 05-10-2013, 05:57 PM
Ken K Ken K is offline
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GM made them with a Saginaw transmission. The shifter is not mounted on the tailshaft housing like it would be on a Muncie. There is a mounting plate that moves the shifter forward. The mounting plate won't work on a Muncie because it would cover up the area where the reverse lever is at. I put a T10 in a G body and used the shifter from a 3rd gen F body. The shifter handle is in the middle of the tunnel. The shifter linkage is real close to the transmission crossmember. I have some Hurst shifters but have not tried using them. There might be a problem with the front seat interference. I tried moving the shifter hump back and covering up the hole in the front, that won't work, the contour is different when it's moved back further. I have a 4th gen F body console in it, it was for a automatic, I cut out the middle of the shifter location for the automatic and the 4 speed shifter handle is in the right place. The tunnel will have to be cut if you use a Muncie. You might also need just the right shifter handle. The original shifter handle is real close to the dash, once it's moved back it might be ackward trying to shift.

  #5  
Old 06-16-2013, 09:14 PM
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John Milner John Milner is offline
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If anyone is converting a G body to a Muncie 4 speed, '66 GTO hurst shifter linkage works great. It doesn't hit the crossmember or have interference with the floor pan.

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