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

Shifter moves freely,But it will still switch between gears.

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Old 04-15-2018, 10:43 AM
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Car: 1986 iroc z28
Engine: 350
Transmission: 700-r4
Shifter moves freely,But it will still switch between gears.

HI. 86 iroc here. Automatic. When i press the button down to switch gears,the shifter WILL engage the tranny,but it will not "lock" into place on my selected gear.Im worried about bumping the shifter on accident while im driving. I tried looking at it,but i dont understand what makes it lock into place so i can fix it, Or maybe i just need a whole new shift assembly? Any help on what might have happened would be so greatly appreciated. It used to work just fine,not sure what happened. Thanks
Old 04-15-2018, 03:15 PM
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Re: Shifter moves freely,But it will still switch between gears.

Is the spring missing? Should be a spring to hold the hold shifter in the notches. Even then, you can move the shifter from 1st to N without pressing the button, it just keeps you from shifting down and into reverse and park.
Old 04-28-2018, 11:09 AM
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Car: 1986 iroc z28
Engine: 350
Transmission: 700-r4
Re: Shifter moves freely,But it will still switch between gears.

Ill def. have a look into that. That must be what is going on.I wasnt aware that it wouldnt shift down or into reverse. Thats what had me worried.Any way you can tell me where the spring is supposed roughly located? Thanks!
Old 04-28-2018, 12:08 PM
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Re: Shifter moves freely,But it will still switch between gears.

Well, the shifter **** sits on top of a tube, with a plunger in the middle. The plunger pushes a spring loaded catch down and out of a series of notches. Pop the top of the console off, and you should see it pretty clearly.

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Old 04-30-2018, 09:42 PM
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Car: 1986 iroc z28
Engine: 350
Transmission: 700-r4
Re: Shifter moves freely,But it will still switch between gears.

Thanks a million! This helps me so much!
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