No Slop Shifting
Thread Starter
Running Guns & Moonshine
Joined: Aug 2001
Posts: 12,360
Likes: 7,072
From: CT
No Slop Shifting
Just a parts review for my shifter / linkage setup I'm going with on the Z06 build. I finally got the parts pieced together to test out and the results are very promising.
The 6060 itself is known for better shifting, but what my focus has been on is the upgraded tub for smooth function and especially the modified linkage which takes the loose travel out of the stick and makes it "rifle bolt accurate." The MGW just makes the toss shorter.
The 6060 itself is known for better shifting, but what my focus has been on is the upgraded tub for smooth function and especially the modified linkage which takes the loose travel out of the stick and makes it "rifle bolt accurate." The MGW just makes the toss shorter.
Le Mans Master
Joined: Oct 2007
Posts: 9,670
Likes: 3,406
From: Akron Ohio
2025 Corvette of the Year Finalist - Modified
2024 C5 of the Year Winner - Modified
2023 C5 of the Year Finalist - Modified
2022 C5 of the Year Finalist - Modified
St. Jude Donor '09-'10-'11
Thats a nice setup. Over the winter I did AMT engine and diff mounts, along with a Hinson shifter and also a TMod lower box. Before you could see in my race videos that the shifter raises and moves around as I am driving. Now the whole drivetrain is rock solid, and the precision of the shifter and lower box is amazing! I didnt do the linkage joints, but probably will from TMod when I have to do a clutch.
Thread Starter
Running Guns & Moonshine
Joined: Aug 2001
Posts: 12,360
Likes: 7,072
From: CT
I will have similar when done, though I opted for the Hinson engine mounts and RKT diff mount for the C6 cradle/drivetrain.
I am sure some owners would bring up NVH and suggest that it will be noticeable. OK sure. But my version of a pleasure cruise has twice the hp than most and I'm tired of breaking stuff. My worst offending mod in that category will likely be the solid driveshaft anyway.
For all this, I do have it in my head that I will attempt to counter for some of the harsher feel by setting the coilovers to be softer on the street.
I am sure some owners would bring up NVH and suggest that it will be noticeable. OK sure. But my version of a pleasure cruise has twice the hp than most and I'm tired of breaking stuff. My worst offending mod in that category will likely be the solid driveshaft anyway.
For all this, I do have it in my head that I will attempt to counter for some of the harsher feel by setting the coilovers to be softer on the street.
Melting Slicks
Joined: Jun 2013
Posts: 3,473
Likes: 691
From: West Virginia
Shifter "movement" may be in the tranny itself. After I had my shifter box apart for a refurb - drilled out the rivets, took some metal off the cover to tighten things up so there was zero extraneous movement of the ball/socket, dealt with bushes, etc., it felt a just bit tight as it did when it was new. I traced the remaining shifter sloppiness to the transmission itself. In the 3/4 or 5/6 planes, the across the gate "slop" had been eliminated, but in the 1/2 plane it was still there. So, not joint problems, or the "slop" would have been in all planes, but in the tranny itself. The other thing I did, btw, was put some good thick washers with new hex shifter hold down bolts on the shifter box and screwed it down good and hard. No movement possible there.
'98 coupe with OEM 6 speed. Probably an original Borg Warner as the car was one of the first '98's built, and Warner had stockpiled 'boxes to cover the relocation of the manfacturing equipment to Tremec.
'98 coupe with OEM 6 speed. Probably an original Borg Warner as the car was one of the first '98's built, and Warner had stockpiled 'boxes to cover the relocation of the manfacturing equipment to Tremec.
Le Mans Master
Joined: Oct 2007
Posts: 9,670
Likes: 3,406
From: Akron Ohio
2025 Corvette of the Year Finalist - Modified
2024 C5 of the Year Winner - Modified
2023 C5 of the Year Finalist - Modified
2022 C5 of the Year Finalist - Modified
St. Jude Donor '09-'10-'11
I will have similar when done, though I opted for the Hinson engine mounts and RKT diff mount for the C6 cradle/drivetrain.
I am sure some owners would bring up NVH and suggest that it will be noticeable. OK sure. But my version of a pleasure cruise has twice the hp than most and I'm tired of breaking stuff. My worst offending mod in that category will likely be the solid driveshaft anyway.
For all this, I do have it in my head that I will attempt to counter for some of the harsher feel by setting the coilovers to be softer on the street.
I am sure some owners would bring up NVH and suggest that it will be noticeable. OK sure. But my version of a pleasure cruise has twice the hp than most and I'm tired of breaking stuff. My worst offending mod in that category will likely be the solid driveshaft anyway.
For all this, I do have it in my head that I will attempt to counter for some of the harsher feel by setting the coilovers to be softer on the street.
Race Director
Joined: Mar 2004
Posts: 12,466
Likes: 886
From: Fort Wayne IN
2025 C5 of the Year Finalist - Modified
C5 of Year Finalist (performance mods) 2019
2017 C5 of the Year Finalist
2016 C5 of the Year Finalist
2015 C5 of the Year Finalist
I got put a TMod lower box into my car over the winter last year (2020-2021 winter) and it knocked out 99% of the slop I had with just the Hurst shifter on the stock box (C5 torque tube and TR6060 also). Next time I plan to have the torque tube out I'm going to address the linkage joints but I don't expect much improvement over what I already have. I think the biggest improvement comes from the lower box with some residual to be found in the linkage depending on how worn it is.
Thread Starter
Running Guns & Moonshine
Joined: Aug 2001
Posts: 12,360
Likes: 7,072
From: CT
I can vouch that the 03 linkage with 63k miles of use was loose to a level I was surprised by, though mechanically not highly loose. I was one of the first to run the tub and agree it helps greatly if yours is worn out and leaked dry. The combo approach is definitely a going to be a good upgrade.
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