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grinding going into 4th

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Old Jun 10, 2014 | 01:11 PM
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Default grinding going into 4th

i have a shifting issue...when accelerating and shift into 4th it grinds going in...if i shift really slow and ease it in no grinding ,,i just had an a&a charger , camshaft , clutch , shifter , meth and a few other items done in December ...i was told the synco's were bad...what can yall tell me about this ? thanks
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Old Jun 10, 2014 | 06:40 PM
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your blocking ring and friction cone are worn. Going to have to open up the transmission.
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Old Jun 10, 2014 | 06:42 PM
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There is also a big problem you are faced with. I was told today by 2 of my suppliers that the company making the triple cone blocking ring/friction cones is out of business and nobody is currently making them. This ****s me as I have a TT CTS-V in the shop needing 2nd gear blocking ring and friction cone, 1 C5 M12 sitting on the bench that needs the same....
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Old Aug 8, 2014 | 08:41 PM
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try Amsoil Torque Drive!

My son's C5 was always "notchy" into first and second and then started to grind going into 4th and sixth only...I read a lot of testimonials from people on this forum and gave it a shot.

btw I had already been flushing the clutch as suggested and had checked alignment on the shifter as well as cleaning and loctiting all bolts.

After Amsoil:

-Immediately first and second smoothed out!

-the 4th and sixth gear improved but still grinded some

-after about a week the grinding STOPPED altogether and has worked perfect all summer!!!

worth a shot!
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Old Aug 8, 2014 | 11:08 PM
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Originally Posted by racerxrick
try Amsoil Torque Drive!

My son's C5 was always "notchy" into first and second and then started to grind going into 4th and sixth only...I read a lot of testimonials from people on this forum and gave it a shot.

btw I had already been flushing the clutch as suggested and had checked alignment on the shifter as well as cleaning and loctiting all bolts.

After Amsoil:

-Immediately first and second smoothed out!

-the 4th and sixth gear improved but still grinded some

-after about a week the grinding STOPPED altogether and has worked perfect all summer!!!

worth a shot!

100% On the mark!!

I had a 98 MN6 that did that stock at 60K..

Just changing the ATF fluid (the old stuff came out looked like metal flake paint) made a significant improvements in ALL GEARS. Give it a try.

Hell, a fluid change is a W H O L E L O T less expensive than a Trans rebuils and clutch change; even if it doesnt correct the issue.

Bill
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