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Short Throw Question

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Old Sep 10, 2002 | 01:50 PM
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Default Short Throw Question

I recently took my Corvette to the Dealer for some transmission work.......and they are telling me that I can't have my B&M Short Throw Shifter in because thats whats making me trans grind into second....Has anyone ever heard of this......Let me know :confused:
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Old Sep 10, 2002 | 02:09 PM
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Default Re: Short Throw Question (LittRedCorvette)

Short throw shifters like the Ripper and Hurst don't change the effective travel of the lower, working end of the shaft. The reduction in throw is in the upper end of the shaft. This is accomplished by moving the shifter pivot point higher on the shaft relative to the stock reference pivot. The throw of the lower part of the shaft is actually increases but is limited by the tranny stops or the stops built into aftermarket shifters. Our tranny has internal stops so the stops supplied with the Hurst and older Rippers are redundant in normal, moderate driving conditions. The stops are recommended for heavy-handed shifting typically seen in racing due to the high forces the shifter sees.

If you look at the shifting bracket/linkage in the torque tube tunnel when you remove the shifter, it's obvious that the shifter ball end "floats" within the mechanism and just needs enough back and forth and side-to-side travel to position the linkage properly. The images from the Hurst install web page illustrate this below.



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Old Sep 10, 2002 | 02:15 PM
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Default Re: Short Throw Question (LittRedCorvette)

Perhaps a readjustment is in order. If I remember the installation instructions correctly you are supposed to engage each gear and then tighten the nut to set that amount of travel. Is it possible that the shifter isn't getting to full engagement on second gear?
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Old Sep 10, 2002 | 02:28 PM
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Default Re: Short Throw Question (Mark 84ltblu)

Perhaps a readjustment is in order. If I remember the installation instructions correctly you are supposed to engage each gear and then tighten the nut to set that amount of travel. Is it possible that the shifter isn't getting to full engagement on second gear?
This sounds like a good check to me too.

Regarding the short shifter causing problems, this is an interesting question. I would think there is less force applied with the short shifter because you have less leverage. That's the reason that the effort to move the shifter increases with the short shifter. On the other hand, the linkage is probably moved faster. I'm not certain that that could cause problems, but its a potential issue. Any one have any thoughts on this?

- Mark
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