Transmission 1-2 Shift Grind


Xcentric

GT Owner
Mark II Lifetime
Jul 9, 2012
5,210
Myakka City, Florida
Thanks Neil - it's great to have your input on this issue, as it gets rid of the conjecture, and putting it to rest.

I personally make that shift very slowly, pausing as I'm entering the 2nd gear when the car is cold, and allowing the synchornizer to come up to speed. This seems to work for me.
+1 with extra thanks to Neil. This 1-2 synchro behavior is common in my experience among many manuals. Always good to take things easy until all systems are at operating temp...which can take a while with 2 1/2 gallons of oil and 8 gallons of coolant. Absolutely no issues at operating temp.
 

FORDGT001

GT Owner
Mark II Lifetime
Dec 9, 2005
300
I shift first to third until the car is really warm, It takes a long time for it to warm up so it will go into second.
 

DWR46

GT owner
Mark II Lifetime
Feb 20, 2008
112
I agree with Heritage Bruce, the secret seems to be a slight delay in neutral between 1st and 2nd. When cold, I shift 1st to 3rd for about 5 miles (a transaxle cooler is of no help here and actaully would make things worse by delaying the warming of the oil). It appears that the Ricardo is very similiar in shift characteristics to the old Borg Warner T-10, in that the delay in neutral actually causes a mismatch in gear speeds that then makes the synchros work harder, but more effectively to engage 2nd gear. This is why almost nobody complains about a crunch when downshifting into 2nd. In this case the gear speeds are mismatched by definition and the synchros can get a good grip on the slider and there is no crunch. It seems strange for the shifts to be smoother with a deliberate mismatch, but that is what happens in the T-10, when you delay the shift into 2nd, they always shift smoother. Just my observations.
 

dr914

GT Owner
Feb 11, 2009
164
Marietta Georgia
and then there are those who floor it cold with cold tires in a curve!!!!!!!!!!!
 

glord

GT Owner
Mar 25, 2006
84
Los Gatos California
Regarding the 1-2 cold grind, my approach is to stop just short of catching second gear, move the shifter ever so slightly back towards neutral (basically just backing off the pressure on the shifter slightly) then immediatly down into second. No grind. I've had two GT and this technique has worked on both. Sounds like a pain, but it really isn't.
 

twobjshelbys

GT Owner
Jul 26, 2010
5,173
Las Vegas, NV
I have it too, and was not surprised. In fact, I almost expected it. I too just go from 1-3 until it's warmed up. I don't like being in 1 for the two blocks out of the subdivision but it's downhill so the car doesn't complain about being in 3rd to the exit.

I do find the amount of resistance does decrease with increased ambient temperature. It's very noticeable in the spring and fall, but not so much in the summer.
 

BlackICE

GT Owner
Nov 2, 2005
1,412
SF Bay Area in California
EP never had the problem.
 

tony h

GT Owner
Jun 16, 2010
75
United Kingdom
The GTR gearbox is fraught with problems. They have been known to fail and they are not as good as the hype suggests. I sold my UK 2009 because I just got fed up with it. Put it into reverse when cold and nothing, nothing, nothing then thump, its engaged...same when going into first when cold. When it was warm and in neutral, it was like you had to take the slack out of it when you had engaged drive before you could set off, otherwise it just engaged violently. The car had all its gearbox allignment checks etc but it was still the same.
BTW - GTR boxes rattle when stationary which I was told is a characteristic. They also have squealing breaks which is something to do with the bells and rotors and the build up of break dust etc.
The 2nd gear grind is absolutely nothing in comparison to the GTR and its characteristics....if anyone has had a GTR I am sure they will recognise these issues.
Tony h
 

ford.f1

GT Owner
Feb 20, 2009
24
All the Super sport cars have the same symptom, Ferrari Lamborghini e.c.t., they are cars that are made for High Performance, and they work perfect when they reach their operation temperature.:thumbsup
 
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John B

GT Owner
Mark II Lifetime
Jan 28, 2006
154
I also shift 1-3 when cold but find I can expedite the 2nd gear warming process by downshifting from 3rd to 2nd with a little rev matching blip of the throttle. It seems while the box doesn't like 1-2 when cold, it doesnt mind 3-2. About 20 seconds driving in 2nd then your good to go on the next 1-2.
 

dr914

GT Owner
Feb 11, 2009
164
Marietta Georgia
wow until I read this thread I thought that my 4500 mile 2006 had a problem! wew!
 

DBK

The Favor Factory™
Staff member
Le Mans 2010 Supporter
Jul 30, 2005
14,713
Metro Detroit
And the F.A.Q has now served a purpose! :cheers
 

PeakCompletions

Boost is an addiction...
Le Mans 2010 Supporter
Jan 6, 2007
1,414
West Texas
I for one am honestly amazed by the ruggedness and design of the stock gearbox having found its limit in Miami last spring... I am pretty happy with the limit :biggrin

The tranny is happy holding 2000 hp and shifting however fast you can grab the gears below 7200 rpm.... at that power level and above that rpm range you have to drive with one hand and hold it in gear :ack:ack:ack

Pretty amazing that it held that long to be honest... :banana:banana:banana
 

tony h

GT Owner
Jun 16, 2010
75
United Kingdom
I too have to be careful to avoid the 2nd gear crunch when cold. I find that slow shifts at low revs work, very rarely do I grind the gears when cold as a result.
In any case, I was always told never to rev cold engines as the various metals expand at different rates - best to slowly warm the engine before giving her stick?
I have a normal shift on mine, is this problem exaggerated with a short shifter installed?
Could this characteristic manifest itself more with short shift than normal shift?
Tony h
 

Mullet

FORD GT OWNER
Le Mans 2010 Supporter
Oct 21, 2008
2,464
Houston Texas
Note to self....

Hold shifter when above 7200 rpm and 2000 hp. Check

Thanks for the tip Ray. ;)

I for one am honestly amazed by the ruggedness and design of the stock gearbox having found its limit in Miami last spring... I am pretty happy with the limit :biggrin

The tranny is happy holding 2000 hp and shifting however fast you can grab the gears below 7200 rpm.... at that power level and above that rpm range you have to drive with one hand and hold it in gear :ack:ack:ack

Pretty amazing that it held that long to be honest... :banana:banana:banana
 

timcantwell

Le Mans 2010 Sponsor * Moderator
Mark IV Lifetime
Le Mans 2010 Supporter
Jan 22, 2006
2,605
N.E. OH & Naples, FL
Your "grinding" has nothing to do with your short shift, rather it is the combination of cold tranny lube and your synchros. This phenomenon is very common with Ferrari. The Ferrari trick is to skip 2nd until the gearbox warms up.
 

tony h

GT Owner
Jun 16, 2010
75
United Kingdom
Hi Tim

I hear what you are sayin....I dont have a short shift on my GT - just wonderin if this is more of a problem for those that do??

THose Ferrari boxes can be a bitch until warm I agree...

Tony h
 

glasser/09

GT Owner
Apr 30, 2014
9
Great analogy! :thumbsup
that pretty much sums it up
 

dr914

GT Owner
Feb 11, 2009
164
Marietta Georgia
Your "grinding" has nothing to do with your short shift, rather it is the combination of cold tranny lube and your synchros. This phenomenon is very common with Ferrari. The Ferrari trick is to skip 2nd until the gearbox warms up.
Yup that is what I do, skip 2nd until the trans warms up. When I first got my car I actually thought that it had a defect until reading this thread. Porsches (that is what I do) are stiff when cold but never grind.
Grinding into gear though is never good no matter what anyone says.
 

Nardo GT

Well-known member
Jul 15, 2006
2,300
Texas
Yup that is what I do, skip 2nd until the trans warms up. When I first got my car I actually thought that it had a defect until reading this thread.

Grinding into gear though is never good no matter what anyone says.
I agree..but you and I seem to be the only ones concerned. Everybody else here passes it off as "typical" or "expected". Funny though, I am a used car dealer and I drive many, many standards each year and none grind or crunch. I have an 01 Dodge pu with a 5-spd and 105K miles...no crunch. Had many Ford Rangers, full size Ford pus, Chevy S-10s and full size Silverados, Focus, Escorts, Cavaliers, Corvettes, 350Zs, Miatas....yada, yada yada...no crunch. I still think a $160K car shouldn't do it, hot, cold or otherwise. Period.