C6 shifter upgrade
Tech Contributor
Joined: Dec 1999
Posts: 32,910
Likes: 2,402
From: Anthony TX
CI 6,7,8,9,11 Vet
St. Jude Donor '08
YES!! Recommend carefully checking the bushings in your OEM box to make sure that they are worn out!! They get very sloppy and make shifting sloppy.
There is a vendor on here that rebuilds the lowers with better quality products.
Bill
There is a vendor on here that rebuilds the lowers with better quality products.
Bill
Thread Starter
Burning Brakes
Joined: Jul 2014
Posts: 801
Likes: 31
I upgraded to a C6ZR-1 shiftbox and lever. I still feel the shifting action is not great. I was inquiring about getting my lowerbox rebuilt. Instead of taking my shifter box back out of the car I asked about sending in my C5Z06 shifterbox and then using my C6 shift lever with that.
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Tech Contributor
Joined: Dec 1999
Posts: 32,910
Likes: 2,402
From: Anthony TX
CI 6,7,8,9,11 Vet
St. Jude Donor '08
I upgraded to a C6ZR-1 shiftbox and lever. I still feel the shifting action is not great. I was inquiring about getting my lowerbox rebuilt. Instead of taking my shifter box back out of the car I asked about sending in my C5Z06 shifterbox and then using my C6 shift lever with that.
Have you changed the Trans ATF Gear fluid?? That can make a big difference in shift feel and performance. If you have never changed it, try that.
Bill
Bill
Last edited by Bill Curlee; Apr 24, 2018 at 02:38 PM.
Melting Slicks
Joined: Jun 2012
Posts: 2,226
Likes: 1,029
From: Thomas Texas
I've worked on a number of C5, C6, and C7 manual shifter boxes including the Z06.
The Z06 for a number of years had solid mounts but due to complaints about loud buzzing and vibration, GM switched over the base shifter box around 2008 with the rubber mounts.
The Z06 with solid mounts (no rubber bushing) and thicker flange mounts.
Over time and due to heat in the trans tunnel all the rubber bushings dry out and start to fall apart. GM does not sell just the rubber bushings. You can buy after market rubber bushings off an eBay vendor and from a few forum vendors for about $20. These are available from West Coast Corvette.
ZIP sells molded polyurethane bushings which are slightly harder for a little more. I personally like the the rubber bushings from the eBay vendor because they have more vibration damping than the polyurethane and are closer to stock.
I would stay clear of the solid Z06 shifter boxes because they will vibrate more and could have that obnoxious buzzing.
Here is a video that talks about the different shifter boxes.
The Z06 for a number of years had solid mounts but due to complaints about loud buzzing and vibration, GM switched over the base shifter box around 2008 with the rubber mounts.
The Z06 with solid mounts (no rubber bushing) and thicker flange mounts.
Over time and due to heat in the trans tunnel all the rubber bushings dry out and start to fall apart. GM does not sell just the rubber bushings. You can buy after market rubber bushings off an eBay vendor and from a few forum vendors for about $20. These are available from West Coast Corvette.
ZIP sells molded polyurethane bushings which are slightly harder for a little more. I personally like the the rubber bushings from the eBay vendor because they have more vibration damping than the polyurethane and are closer to stock.
I would stay clear of the solid Z06 shifter boxes because they will vibrate more and could have that obnoxious buzzing.
Here is a video that talks about the different shifter boxes.
Last edited by RussM05; May 15, 2018 at 03:52 PM.
Safety Car
Joined: May 2006
Posts: 3,732
Likes: 707
From: Shelton, Connecticut
St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15-'16
I was under the impression that the 2008-2013 Corvettes with the manual transmission used a new short throw shifter similar to the Z06 shifter. Had the rubber mount bushings, but, the lever arm was moved to accommodate the short shift pattern.
Melting Slicks
Joined: Jun 2012
Posts: 2,226
Likes: 1,029
From: Thomas Texas
Sorry, I can not confirm that any of stock boxes had shorter throws. I believe they are all the same except the C5 had a bend in the lever.
I installed MGW shifters on my C6 and C7. The MGW is much different. Its much tighter and shorter that stock.
I installed MGW shifters on my C6 and C7. The MGW is much different. Its much tighter and shorter that stock.