2011 gt500 1-2 shift problem

Bad03Cobra

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I just want to say when I first got my car I thought I had this problem. After driving it I can power shift my car with ease. I am not saying that it does not happen in other cars but I would like to see, hear it. If anybody lives near Bel Air, MD with this grind I would like to see what you are talking about if you don't mind..

Bob
 

Corepuncher

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I too have this problem. But after driving it quite a while, I think it is entirely possible that it is just a hard car to shift. I have "learned" to shift it without grinding. but I have to hesitate a split second. Another thing that helps is to shift it while RPM's are increasing...like when you are ramping them up.
 

BlueEyedSnake

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so i am debating between a 2013/2012 shelby or a zo6 and now this shifting issue makes me nervous. does a mgw shifter and wot box fix this issue?

People on this tread have claimed that the wot box does fix the issue and the average setting I believe is 250ms on the box. MGW shifters are just awesome and they do help, but the wot box does work. I plan on buying a wot box here very soon after I see what my dealership has to say first.
 

Corepuncher

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The stock shifter shifts from 1 to 2 like someone poured a bunch of gravel into it. I'm sure that has something to do with missing shifts.
 

Snakepit2011

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2011 Shelby 1st to 2nd gear grind

I am a newbie, but wanted to let you know that I own a 2011 Shelby GT500, SVT package. I have the same problem others with the transmission. I filed a lemon law complaint with bbb aginst ford for not have a fix for the problem. I was told a month later that ford had a fix for the transmission 1st..2nd gear grind. I took my Shelby the dealership in north ala. on Monday 14th of Nov. 2011 to allow them to fix the problem. There was another person behind me in line to have his same problem as mine. The dealership called the guy that was in line with me and they told him to come and pick up his car because ford does not have a fix for the car. He told them about my car as having the same problem and they told him that my car was going to be a ginnie pig car, and that I had a claim against ford and they only had about 2 weeks to fix it. I turned around and called the dealership and told them not to touch or drive the car and I will pick it up the next morning. The service manager told me he would take care of it. I got to the dealership the next morning around 11am. I asked if the Field Service Enningeer had gotten there this morning and was told yes. I ask to speak to him and myself, service manager, and the FSE went behind closed doors and then the FSE said he had already fixed my car and I turned around and ask the service person of what I had said and he said that he told the shop forman of what I said andthe service person told me the it had been done without his knowlege. I was very upset and the FSE said that I had to give him one chance to fix the car by law, at which time I told him not if I did not want him too. He then said that it has already been done and that was that.
I left the dealership mad,, I got about 5 miles from dealership and then I started off in 1st gear and about 3500 rmps shift to second and guess what happen, it GRIND!! I called the dealership to let them know that changing out the shifter assimbley did not fix the problem. Now I am waiting to go to arbitration with ford in December. I will let everyone know what happens
 

Blackmax

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I know a few here have the problem and just live with it. Trust me Ford knows exactly what the fix is but will try to get by without having to deal with it. Can you imagine what it will cost them to fix every GT500.
 

heatsoaked12

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I am a newbie, but wanted to let you know that I own a 2011 Shelby GT500, SVT package. I have the same problem others with the transmission. I filed a lemon law complaint with bbb aginst ford for not have a fix for the problem. I was told a month later that ford had a fix for the transmission 1st..2nd gear grind. I took my Shelby the dealership in north ala. on Monday 14th of Nov. 2011 to allow them to fix the problem. There was another person behind me in line to have his same problem as mine. The dealership called the guy that was in line with me and they told him to come and pick up his car because ford does not have a fix for the car. He told them about my car as having the same problem and they told him that my car was going to be a ginnie pig car, and that I had a claim against ford and they only had about 2 weeks to fix it. I turned around and called the dealership and told them not to touch or drive the car and I will pick it up the next morning. The service manager told me he would take care of it. I got to the dealership the next morning around 11am. I asked if the Field Service Enningeer had gotten there this morning and was told yes. I ask to speak to him and myself, service manager, and the FSE went behind closed doors and then the FSE said he had already fixed my car and I turned around and ask the service person of what I had said and he said that he told the shop forman of what I said andthe service person told me the it had been done without his knowlege. I was very upset and the FSE said that I had to give him one chance to fix the car by law, at which time I told him not if I did not want him too. He then said that it has already been done and that was that.
I left the dealership mad,, I got about 5 miles from dealership and then I started off in 1st gear and about 3500 rmps shift to second and guess what happen, it GRIND!! I called the dealership to let them know that changing out the shifter assimbley did not fix the problem. Now I am waiting to go to arbitration with ford in December. I will let everyone know what happens

Soo sorry to hear your outcome. I was looking forward to better news. best of luck and please keep us posted! Yours truly from the 1-2 shift grind clan:cryying:
 

mitchford

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Nov 24, 2011
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What have I gotten myself into this time?

I just bought a lightly used 2011 GT500 with the SVT package. The first few days I drove it lightly to get used to the ungodly power before really working it. The first time I hit hard, I missed the first to second shift and got a loud gear grind, second try the same, third the same. Each time I tried to pull in a slightly different manner to see if I was just not used to a short throw. Dozens of tries with about 90% shift failures. Nothing I tried worked as long as I was pushing it hard with high revs. I have read this chain and understand that not everyone has this problem so I don't want to get sucked into debates on shifting/driving skills because I started testing this with the assumption it was my problem and have systematically come to the conclusion that I am not the problem. I am going to make this thread my focus to see what is learned before going to my dealership. I fully expect resistance and push back so I want to have my facts straight. I do not believe in suing unless the situation is truly unresolvable and there is no other course of action, but this chain is very convincing that this problem might be unsolvable any other way. I love my car and want to remain in love, but what is the point of having such power if you can't occasionally unleash it a safe environment. Thank you to everyone who has taken the time to contribute to this very important thread and I will also post any news or experience I have with this situation.
 

ALLKHEINZ

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maaaan i can say this 10.0000000 quadrillion trillion million times....GET A WOTBOX! it circumvents the entire problem...bang away every single gear at anytime, no boost loss because you foot is planted through the floorboard.....if you take your car to the dealer they will just fark it up even more or they will give it back to you with the exact same problem......Ive had mty 2010 for 1.5 years Ive had it down the drag strip about 100 times and I have yet to miss a shift or EVER have an issue because of the wotbox......i started at 350 ms to get use to it, then went to 250 ms and then 200 then 150 and finally just put it to auto so it works as fast as you can powershift.....anyway nuff said...screw messing around with fixes and get the wotbox! PERIOD!
 

MattR

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maaaan i can say this 10.0000000 quadrillion trillion million times....GET A WOTBOX! it circumvents the entire problem...bang away every single gear at anytime, no boost loss because you foot is planted through the floorboard.....if you take your car to the dealer they will just fark it up even more or they will give it back to you with the exact same problem......Ive had mty 2010 for 1.5 years Ive had it down the drag strip about 100 times and I have yet to miss a shift or EVER have an issue because of the wotbox......i started at 350 ms to get use to it, then went to 250 ms and then 200 then 150 and finally just put it to auto so it works as fast as you can powershift.....anyway nuff said...screw messing around with fixes and get the wotbox! PERIOD!

I had my trans repaired, turned out the 1-2 blocker was installed reverse of what is was supposed to be. Mine shifts pretty well now, still a little notchy and you really need to make sure to grip it and rip it. That said how hard is it to install the WOT box? It it reversible? Do you need to be an electrical engineer to make it work?
 

mitchford

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I like the idea of the WOT box, but I am not that familiar with it and the installation. Is there a brand that most agree is the one to use for the GT500? Does it effect warranty? I still want to lodge the issue with Ford in case they finally own up and fix it or be a class action suite to teach them a lesson about treating the customers who spend the most the worst.
 

CPRsm

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I had my trans repaired, turned out the 1-2 blocker was installed reverse of what is was supposed to be. Mine shifts pretty well now, still a little notchy and you really need to make sure to grip it and rip it. That said how hard is it to install the WOT box? It it reversible? Do you need to be an electrical engineer to make it work?
Who told you it was installed backwards ? You can't install a blocker backwards. It has a conical shape to it to add surface area. Now if the whole assembly was in backwards, it would grind all the time, not just fast. But the teeth that the blocker ring slows and engages, I have always seen as a singular attached to the gear itself. That makes it pretty damn hard to be in backwards. Not that I don't believe you, just wondering who told you that. I haven't taken mine out yet to see. But seems very odd. Here's a visual to help folks out on what's going on.

In the pic, the slider is in the middle. When you shift, it goes front or back depending on. The first set of teeth like the second, are angle cut for street cars to help alignment. When it catches that ring, the pressure pushing forward will slow the gear, allowing it to engage.
Redirect Notice A race tranny on the other hand has directional teeth with no taper. Just a 90 deg wall. That way when it gets any engagement that f'er is going to GRAB. This is also why you can't shift them easy. It needs the speed to engage quickly with the least amount of grinding. When it wears out, pull it out, weld it back up and give it shape and put it back in.

This is what it looks like on the underside. That clutch material engages another cone shaped part on the gear.
Redirect Notice

The two pieces, the cone and the blocker ring can be seen in the pic as the two pieces to the left.
Redirect Notice

If you read some of the info on MGW's shifters about how they find the compromise with shifters on fast enough, but not too fast, this is why. You can make a shifter shift 10 times faster mechanically, but you still need to allow time for the blocker to slow the gear down enough to engage without grinding. Mine can grind a little sometimes too, and plan is to just putting carbon fiber lined blockers in it.
 

Corepuncher

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CPRism, this is exactly what the ford tech told me the other day, that it can't be in backwards. He was a tranny specialist for 30 years before foreman...so...I believe him.

I think the issue is that our transmission needs a little more time for it all to slow down from 1st to 2nd at high rpm. Same thing about reverse...if you are in your garage and punch the clutch to the floor and quickly move from N to R, it will grind in. He told me this was normal too, and that you MUST wait a split second longer. I don't like it, but it's the way it is.

That said, please give me more info on your solution...carbon fiber lines blockers?
 

CPRsm

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Yep, reverse doesn't have synchros. That's why putting it on a forward gear, then reverse solves that problem. Your using another gear to slow the internals enough to put in R. T5 are really bad at it. It's called the "The T5 grind." lol

Not my solution at all. Carbon fiber blockers is pretty common in performance rebuilds. I called and they are about 75 ea. Just a more aggressive clutch material to slow her faster.
Trying to remember the name of the company I talked to. Walt I think is the owner there.
 

CPRsm

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Not sure honestly. I just called asking if they had CF lined blockers yet for that tranny and he said they did. I'll do it and when I do the clutch. I'll let everyone know how it goes if no one beats me to the punch. The k-member didn't solve it like I thought it might. Thinking at first it may have been too much engine twist with a remote shifter. It happens, but wasn't the case here.
 

MattR

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Who told you it was installed backwards ? You can't install a blocker backwards. It has a conical shape to it to add surface area. Now if the whole assembly was in backwards, it would grind all the time, not just fast. But the teeth that the blocker ring slows and engages, I have always seen as a singular attached to the gear itself. That makes it pretty damn hard to be in backwards. Not that I don't believe you, just wondering who told you that. I haven't taken mine out yet to see. But seems very odd. Here's a visual to help folks out on what's going on.

In the pic, the slider is in the middle. When you shift, it goes front or back depending on. The first set of teeth like the second, are angle cut for street cars to help alignment. When it catches that ring, the pressure pushing forward will slow the gear, allowing it to engage.
Redirect Notice A race tranny on the other hand has directional teeth with no taper. Just a 90 deg wall. That way when it gets any engagement that f'er is going to GRAB. This is also why you can't shift them easy. It needs the speed to engage quickly with the least amount of grinding. When it wears out, pull it out, weld it back up and give it shape and put it back in.

This is what it looks like on the underside. That clutch material engages another cone shaped part on the gear.
Redirect Notice

The two pieces, the cone and the blocker ring can be seen in the pic as the two pieces to the left.
Redirect Notice

If you read some of the info on MGW's shifters about how they find the compromise with shifters on fast enough, but not too fast, this is why. You can make a shifter shift 10 times faster mechanically, but you still need to allow time for the blocker to slow the gear down enough to engage without grinding. Mine can grind a little sometimes too, and plan is to just putting carbon fiber lined blockers in it.


This is all I can tell you, my car had 100% lock out when doing any sort of spirited driving. The car had 2,000 miles on it and had not improved. Tech at my Ford dealership ( a tranny tech of 25 years) called me after taking it apart and said all of the parts looked perfect and that I must not have beaten on it much. I hadn't, I would attempt a shift every 500 miles or so to see if it would break in. He went on the say the blocker ring had some groves or something in it and was installed the opposite of what the Ford book showed. They called in the FSE confirmed it was supposed to be installed as the book diagram showed. A new syncro assembly and second gear were installed (these did have revised part numbers). I now have 1500 miles on it with an easy 500 mile break in. I can floor it in first and make a clean grind free shift from any gear as fast as my feet and hands will allow me. Im not pro drag racer, but I can shift pretty fast. The 1-2 is still a little notchy when cold but after 10 miles or so it shifts very nice.

The dealer would have no reason to lie to me, maybe i misunderstood what was installed incorrectly. Now before my dealer agreed to fix my car they had worked with another dealer in the state who had repaired several cars and they told my tech what to look for and sure enough found it the same problem they had found in about 50% of the cars they had repaired.

I would be happy to give you the dealers information and names of the mechanic and service manager via PM if you would like to talk to them.

Bottom line is. Car didn't shift = unhappy customer. Now car shifts = :banana:
 

MattR

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Not sure honestly. I just called asking if they had CF lined blockers yet for that tranny and he said they did. I'll do it and when I do the clutch. I'll let everyone know how it goes if no one beats me to the punch. The k-member didn't solve it like I thought it might. Thinking at first it may have been too much engine twist with a remote shifter. It happens, but wasn't the case here.


FYI Tremec has a rear tail housing that eliminates the remote shifter. You need a new main shaft, rear housing and shifter. This is just for the s197. If mine ever needs to come out again I will upgrade to this configuration.
 

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