Hurst shifter hard shifting 6 speed
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Racer
Joined: Jul 2019
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Hurst shifter hard shifting 6 speed
My manual shifter is really difficult to shift smoothly or rapidly. Clunky and crunchy are words that come to mind. I had a Corvette tech check it and he said it was fine. The car shifts smoothly when not driving. The tech said make sure your clutch is completely down to the floor. I'm really a conservative driver and won't push a car until I get a good feel about how the car shifts. I DO NOT want to end up with an expensive repair! Any mods or ideas you guys know of? Thanks Scott
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From: Fort Wayne IN
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Search for washer mod. You space the shifter detent out on the trans and it should smoothen things up.
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Racer
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Also, fresh fluid helps. Not hard to change, or have a shop do it. Most notice a nice improvement.
An aftermarket shifter (top shifter box) is simply a lever. There aren’t detents in the mechanism that change feel, usually only geometry changes but that has nothing to do with notchiness.
The washer/anti-venom mod is one thing, but fresh fluid can never be a bad idea.
An aftermarket shifter (top shifter box) is simply a lever. There aren’t detents in the mechanism that change feel, usually only geometry changes but that has nothing to do with notchiness.
The washer/anti-venom mod is one thing, but fresh fluid can never be a bad idea.
Melting Slicks
Joined: Oct 2007
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Hurst shifters aren't well sealed. It might be time for a cleaning in addition to all the above. Take the shifter apart, clean everything and re-grease.This will make a big difference.
Hurst shifters also have different springs and adjustments for those springs. If you have the stock springs, try the softer ones. If you have the softer ones, try using only one on each side (the larger outside ones). Try adjusting the spring tension using the two torx screws on the top of the casing.
Hurst shifters also have different springs and adjustments for those springs. If you have the stock springs, try the softer ones. If you have the softer ones, try using only one on each side (the larger outside ones). Try adjusting the spring tension using the two torx screws on the top of the casing.
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From: Fort Wayne IN
2025 C5 of the Year Finalist - Modified
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2017 C5 of the Year Finalist
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2015 C5 of the Year Finalist
Hurst shifters aren't well sealed. It might be time for a cleaning in addition to all the above. Take the shifter apart, clean everything and re-grease.This will make a big difference.
Hurst shifters also have different springs and adjustments for those springs. If you have the stock springs, try the softer ones. If you have the softer ones, try using only one on each side (the larger outside ones). Try adjusting the spring tension using the two torx screws on the top of the casing.
Hurst shifters also have different springs and adjustments for those springs. If you have the stock springs, try the softer ones. If you have the softer ones, try using only one on each side (the larger outside ones). Try adjusting the spring tension using the two torx screws on the top of the casing.
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I've had a Hurst in my C-5 since 2002, and have been very satisfied with it. I did, however, when I first installed it, take quite a bit of time fiddling with the adjustments, just to get the right feel. I also made sure that the "neutral gate" was properly adjusted. To the OP, look up "shifter adjustment" on this forum. And for what it's worth, I've never performed the "anti-venom mod".....
Racer
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I still have the stock shifter, but wanted to mention that I recently swapped out the original factory DEX3 to Amsoil Torque Drive and noticed a fairly significant change to how it shifts. Almost all the notchiness is gone. As others mentioned, it might be worth changing fluid if you've not done so already.
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From: Western NY
I still have the stock shifter, but wanted to mention that I recently swapped out the original factory DEX3 to Amsoil Torque Drive and noticed a fairly significant change to how it shifts. Almost all the notchiness is gone. As others mentioned, it might be worth changing fluid if you've not done so already.
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Racer
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You mean manual transmission fluid though right? We all know what ATF stands for. I only have 28000 miles on the car BUT it is 17 years old.
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From: Anthony TX
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YES! The C5 MN-6 / MN-12 manual transmissions uses ATF (Automatic Transmission Fluid) as the gear box lubricant! It specifies DEXTRON III but, if you use the AMSOIL Torque Drive, its compatible with ALL the C5 manual transmissions.
NOTE!! The early C5s (97-2000) can only use the old DEXTRON NON Synthetic ATF or equivalent. The Late model C5s 2001-2004 can use synthetic ATF. AMSOIL Torque Drive is compatible with all.
NOTE!! The early C5s (97-2000) can only use the old DEXTRON NON Synthetic ATF or equivalent. The Late model C5s 2001-2004 can use synthetic ATF. AMSOIL Torque Drive is compatible with all.
Racer
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From: MN
Mine is same age as yours. These manual transmissions take ATF. If you look underneath at the transmission you'll see a sticker saying Dexron III. If you do some searching you'll see many options for fluid that can be used in our transmissions - but whatever should be Dexron II based. I ended up using the Amsoil product as it seems to be the product of choice for many here on the forum.
Last edited by roegs; Oct 13, 2019 at 10:36 PM.
Thread Starter
Racer
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YES! The C5 MN-6 / MN-12 manual transmissions uses ATF (Automatic Transmission Fluid) as the gear box lubricant! It specifies DEXTRON III but, if you use the AMSOIL Torque Drive, its compatible with ALL the C5 manual transmissions.
NOTE!! The early C5s (97-2000) can only use the old DEXTRON NON Synthetic ATF or equivalent. The Late model C5s 2001-2004 can use synthetic ATF. AMSOIL Torque Drive is compatible with all.
NOTE!! The early C5s (97-2000) can only use the old DEXTRON NON Synthetic ATF or equivalent. The Late model C5s 2001-2004 can use synthetic ATF. AMSOIL Torque Drive is compatible with all.
Thread Starter
Racer
Joined: Jul 2019
Posts: 318
Likes: 29
YES! The C5 MN-6 / MN-12 manual transmissions uses ATF (Automatic Transmission Fluid) as the gear box lubricant! It specifies DEXTRON III but, if you use the AMSOIL Torque Drive, its compatible with ALL the C5 manual transmissions.
NOTE!! The early C5s (97-2000) can only use the old DEXTRON NON Synthetic ATF or equivalent. The Late model C5s 2001-2004 can use synthetic ATF. AMSOIL Torque Drive is compatible with all.
NOTE!! The early C5s (97-2000) can only use the old DEXTRON NON Synthetic ATF or equivalent. The Late model C5s 2001-2004 can use synthetic ATF. AMSOIL Torque Drive is compatible with all.
Thread Starter
Racer
Joined: Jul 2019
Posts: 318
Likes: 29
YES! The C5 MN-6 / MN-12 manual transmissions uses ATF (Automatic Transmission Fluid) as the gear box lubricant! It specifies DEXTRON III but, if you use the AMSOIL Torque Drive, its compatible with ALL the C5 manual transmissions.
NOTE!! The early C5s (97-2000) can only use the old DEXTRON NON Synthetic ATF or equivalent. The Late model C5s 2001-2004 can use synthetic ATF. AMSOIL Torque Drive is compatible with all.
NOTE!! The early C5s (97-2000) can only use the old DEXTRON NON Synthetic ATF or equivalent. The Late model C5s 2001-2004 can use synthetic ATF. AMSOIL Torque Drive is compatible with all.
Thread Starter
Racer
Joined: Jul 2019
Posts: 318
Likes: 29
Also, fresh fluid helps. Not hard to change, or have a shop do it. Most notice a nice improvement.
An aftermarket shifter (top shifter box) is simply a lever. There aren’t detents in the mechanism that change feel, usually only geometry changes but that has nothing to do with notchiness.
The washer/anti-venom mod is one thing, but fresh fluid can never be a bad idea.
An aftermarket shifter (top shifter box) is simply a lever. There aren’t detents in the mechanism that change feel, usually only geometry changes but that has nothing to do with notchiness.
The washer/anti-venom mod is one thing, but fresh fluid can never be a bad idea.