normal for tranny to grind under a hard shift???

Foxfan88

My Grandpa has great wood.

Sep 13, 2004

2,487

4

0

Miami, Ok

Dec 27, 2005

#1

• Dec 27, 2005

• #1

hey my tranny is pretty noisy, so i can hear my synchros spin up to speed when i hold the shifter towards a gear.

Well when i shift hard, the tranny makes a short grind sound. It seems like its not getting enough time to synchronize itself, at least thats what i can gather.

It does it in 2nd, but its most noticable in 3rd and then it doesnt do it in 4th....

so does anyone have this little grind when shiftin hard???
just wondering if i should be ****ting my pants over it....

 

795.0pacecar

lover of pudgy polygamists

Jul 11, 2003

480

0

17

Senoia, GA

Dec 27, 2005

#2

• Dec 27, 2005

• #2

I think your syncos are starting to take a dump.

 

Foxfan88

My Grandpa has great wood.

Sep 13, 2004

2,487

4

0

Miami, Ok

Dec 27, 2005

#3

• Dec 27, 2005

• #3

well what do i do??
when just cruising and driving normal, the tranny shifts smooth as butter......

 

I

IntenseBlue

Member

Jul 10, 2005

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Dec 27, 2005

#4

• Dec 27, 2005

• #4

Mine's doing the same thing. Grinds second and fourth under hard shifts. I can also hear my synchros whine when forcing it into first or second when decelerating. My tranny whines, too. Three people have thought my car supercharged before.

 

Mavrick

Founding Member

Aug 29, 2002

2,264

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46

Collingwood, ON

Dec 27, 2005

#5

• Dec 27, 2005

• #5

Read your first post and think about it...

Grinding is bad, your tranny is hooped and you need a rebuild or better yet a new tranny... assuming your clutch is adjusted proporly.

 

I

IntenseBlue

Member

Jul 10, 2005

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Dec 27, 2005

#6

• Dec 27, 2005

• #6

How much to T5 transmission rebuilds normally cost?

 

795.0pacecar

lover of pudgy polygamists

Jul 11, 2003

480

0

17

Senoia, GA

Dec 27, 2005

#7

• Dec 27, 2005

• #7

T-5 rebuilds I have seen are 200-500+ bucks normally depending on wether or not they come with new gears.

 

I

IntenseBlue

Member

Jul 10, 2005

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Dec 27, 2005

#8

• Dec 27, 2005

• #8

Would it be much more to convert it to the T5Z gearset?

 

Euphoric306

New Member

Apr 5, 2004

905

0

0

Dec 27, 2005

#9

• Dec 27, 2005

• #9

much more




sounds to me like your clutch might not be adjusted right foxfan. where does the pedal grab? it might not be your synchros that you hear winding up, it might be your throwout bearing, because i can hear the same thing you are talking about when i downshift slowly.

and also a misadjusted clutch would cause the grinding during hard shifts.

if your synchros were going out id think it would happen consistently in only a certain gear or gears.

good luck

 

8

86bluecobra

Advanced Member

Dec 20, 2004

4,265

12

69

B.C. Canada

Dec 27, 2005

#10

• Dec 27, 2005

• #10

i ran a grinding tranny like you describe for 2 years. i knew the syncros were gone but it wasn't like i couldn't get it into gear. finally changed it out because of the looks passengers were giving me.

 

CBZGT50

New Member

Apr 21, 2005

171

0

0

St Louis area

Dec 27, 2005

#11

• Dec 27, 2005

• #11

My 93 t-5Z is grinding from 2-3 on high rpm's. At the track, that would be bad. But for now, I just wait a second for the tranny to spin down and then put it in third. Soon I am going to just add a TKO 500 and HD clutch system. Unfortunatly the wife is cinching the Cobra budget! I was told that on the t-5, if you have a 2-3 grind, you have to change the lower gear cluster. The guy told me $250 if I bring him the tranny. He is the Mech that sets up my gears. So you can get it cheap if you can find a small tranny shop with a race car mechanic.



Cb

 

Foxfan88

My Grandpa has great wood.

Sep 13, 2004

2,487

4

0

Miami, Ok

Dec 28, 2005

#12

• Dec 28, 2005

• #12

well are there any write ups for clutch adjustment.

I have the stock cable, bbk FWA and about to put in a FRPP double hook alum quadrant....

right now i have the stock quadrant and pawl and when i press the clutch real hard it POPS and sticks to the floor.

So maybe this stock quadrant might be contributing to improper adjustment....

also here is something to add.

before i had my FWA, it had no piece there so the clutch was horrible.

and if i tried it then it would gind into second under a hard shift, and 3rd also.

since i got the FWA and its closer to proper adjustment, it only grinds under a hard shift from 2nd to 3rd.

doesnt do it in second anymore..... havent really got on it lately, but tonight i was driving fast a bit so i was listening for it.

also about the whining when holding the shifter next to a gear, the pitch of the whine changes, second will sound different than third,

 

Euphoric306

New Member

Apr 5, 2004

905

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0

Dec 28, 2005

#13

• Dec 28, 2005

• #13

that's because second has a different gear ratio than third.

get that damn quadrant. yes, your crappy factory pos isn't tightening up your clutch cable enough.

 

G

GREYFOX4INCH

Member

May 8, 2005

190

0

16

western MA

Dec 28, 2005

#14

• Dec 28, 2005

• #14

this same thing happens to both my foxes. one of them is most certainly not adjusted right, and beat as hell. the other has been babied for its entire 65,000 orig mile life. and the low mile car has a well adjusted clutch that grabs real quick. i have noticed that when the tranny's are cold they will do that same grind in 2nd&3rd even while granny shifting at low RPM's. i would argue that this is a sighn of bad sycros, because i know that my 65,000 mile car was not abused, i mean it was barely even driven.last owner=10,000 miles in six years.
oh yeh, they both whine pretty loud while cruising too, if im on my cell phone people always ask
"whats that noise". i dont remember if you said it was an automatic before but that will make it even louder because you probly had to cut a larger hole right? TRY A SYTHETIC OIL AND SEE IF IT HELPS IF YOU ARE NOT ALREADY.

by the way i posted a comment in your other thread first before seeing this one

 

timewarped1972

Member

Jun 17, 2004

642

0

16

mesa, az

Dec 28, 2005

#15

• Dec 28, 2005

• #15

get your new quadrant on there and see what happens..........
where did you get your t-5 from??
you gotta remember buying these things used is a gamble, you either get hosed all together like i did once, or the tranny's worn......
unless your lucky these things cost you either way it seems sometimes, which is why my next attempt will be a new one....

 

dragnazz5.0

My "0" key d0esn't w0rk, s0 I have t0 use the zer0

Nov 19, 2005

815

5

18

mooresville, nc

Dec 28, 2005

#16

• Dec 28, 2005

• #16

http://50stangs.com/techarticles/clutchcableadjustment.html

courtesy of our very own v8only

 

bock

Founding Member

Jan 7, 2002

648

2

19

Montreal,Qc

Dec 28, 2005

#17

• Dec 28, 2005

• #17

my t-5 start grinding a bit and some time from 2nd to 3 when hard shifting.I changed the tranny oil and ad a Doctor detroit tranny oil traitement.Never did grind again since 2 years.

 

I

IntenseBlue

Member

Jul 10, 2005

946

0

16

Dec 28, 2005

#18

• Dec 28, 2005

• #18

I'm gonna run some Lucas transmission additive in mine and see if it makes a difference. I've got a friend with a Vortec 350 and a 5speed in a truck and he said it made a huge difference.