DIY: Investigating Sloppiness of the C5 Shifter/Linkage/Trans
#21
Drifting
Thread Starter
Quick update. Trans is back together, while filming that video I briefly talked about how sloppy the shift linkage between the shifter and the trans is (specifically, the u-joint where it connects to the trans via roll pin):
I took a ride to the local specialty hardware store, advance auto, Autozone, and Fleet Pride - nobody even carries a generic u-joint similar to the one welded to the shaft, so it's back to the drawing board. I did some research and found that steering shaft u-joints are fairly similar in size and construction and will see about the same torque as a shift rod linkage. A few minutes later I had this guy on the way:
https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1
I don't know whether this is something that can be bolted/roll pinned to the shift shaft, or if I'll have to weld on. I don't see it wearing out in the lifetime of the car. Hopefully it is a true "zero slop" unit.
I took a ride to the local specialty hardware store, advance auto, Autozone, and Fleet Pride - nobody even carries a generic u-joint similar to the one welded to the shaft, so it's back to the drawing board. I did some research and found that steering shaft u-joints are fairly similar in size and construction and will see about the same torque as a shift rod linkage. A few minutes later I had this guy on the way:
https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1
I don't know whether this is something that can be bolted/roll pinned to the shift shaft, or if I'll have to weld on. I don't see it wearing out in the lifetime of the car. Hopefully it is a true "zero slop" unit.
The following 2 users liked this post by nsogiba:
bobick (11-24-2020),
TastyBacon (08-24-2017)
#22
Tech Contributor
Member Since: Dec 1999
Location: Anthony TX
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CI 6,7,8,9,11 Vet
St. Jude Donor '08
OUTSTANDING!!! Good job repairing something that most people just live with because there are NO simple GM replacement parts.
Bill
Bill
#24
Drifting
Thread Starter
I dug up some old pictures of my work in case anyone might be curious.
Measuring the old linkage before chopping it up.
The cut and welded U-Joint.
Fluid of choice
Measuring the old linkage before chopping it up.
The cut and welded U-Joint.
Fluid of choice
Last edited by nsogiba; 08-28-2017 at 08:54 AM.
#25
Tech Contributor
Member Since: Dec 1999
Location: Anthony TX
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CI 6,7,8,9,11 Vet
St. Jude Donor '08
YOU,,,,,,, Do EXCELLENT WORK my friend!
Good job on making it happen!!
Bill
Good job on making it happen!!
Bill
#26
Burning Brakes
why doesn't someone manufacture this as an aftermarket piece... since GM screwed it up...
I had a thread on this and no one has a solution... I am not able to weld and do this kind of stuff... and the question is, does this mean it would have to be done with transmission out?... I just had tranny rebuilt and put in MGW flatstick shifter... and this slop annoys me........... spent thousands and still sucks to shift....
I had a thread on this and no one has a solution... I am not able to weld and do this kind of stuff... and the question is, does this mean it would have to be done with transmission out?... I just had tranny rebuilt and put in MGW flatstick shifter... and this slop annoys me........... spent thousands and still sucks to shift....
#27
Tech Contributor
Member Since: Dec 1999
Location: Anthony TX
Posts: 32,736
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CI 6,7,8,9,11 Vet
St. Jude Donor '08
why doesn't someone manufacture this as an aftermarket piece... since GM screwed it up...
I had a thread on this and no one has a solution... I am not able to weld and do this kind of stuff... and the question is, does this mean it would have to be done with transmission out?... I just had tranny rebuilt and put in MGW flatstick shifter... and this slop annoys me........... spent thousands and still sucks to shift....
I had a thread on this and no one has a solution... I am not able to weld and do this kind of stuff... and the question is, does this mean it would have to be done with transmission out?... I just had tranny rebuilt and put in MGW flatstick shifter... and this slop annoys me........... spent thousands and still sucks to shift....
Hey,,, Picture this:
" A AHMED C5 Shifter Shaft Repair Company"
You would make some good cash!
When can we expect some repaired shafts??
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nsogiba (10-17-2017)
#28
Drifting
Thread Starter
why doesn't someone manufacture this as an aftermarket piece... since GM screwed it up...
I had a thread on this and no one has a solution... I am not able to weld and do this kind of stuff... and the question is, does this mean it would have to be done with transmission out?... I just had tranny rebuilt and put in MGW flatstick shifter... and this slop annoys me........... spent thousands and still sucks to shift....
I had a thread on this and no one has a solution... I am not able to weld and do this kind of stuff... and the question is, does this mean it would have to be done with transmission out?... I just had tranny rebuilt and put in MGW flatstick shifter... and this slop annoys me........... spent thousands and still sucks to shift....
Trans and torque tube has to come out to remove this linkage. I am surprised that you didn't inspect the linkage while it was out, especially after making the posts and threads regarding this problem. I would have been very easy to inspect.
Since I didn't know the origin of my problem I investigated all components personally to figure out the issue.
Last edited by nsogiba; 10-17-2017 at 04:17 PM.
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Sam Handwich (04-06-2018)
#29
Burning Brakes
I had a shop repair it... and it was a long story.... parts delayed in shipping and so on... i was carless.... they took it apart twice.... sigh....
#31
Burning Brakes
Ya i still want this... Whycant someone jump on this n make it for us..
#32
Drifting
Thread Starter
Most people ditch the lower box altogether and go with the MGW shifter, which is the absolute ultimate in shift feel.
#34
#35
Burning Brakes
ya i got the mgw full setup.. great shifter, tight... but the rear end part that connects to it itself is sloppy... not the shifter... but inadvertly it affets the shifter as its the linkage itself...
#36
Drifting
Thread Starter
If you have a welder and some mechanical ability you can cut off the old u-joint and modify a universal application steering shaft u joint to work.
Last edited by nsogiba; 04-09-2018 at 08:57 AM.
#37
Correct.
If you have a welder and some mechanical ability you can cut off the old u-joint and modify a universal application steering shaft u joint to work.
https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1
If you have a welder and some mechanical ability you can cut off the old u-joint and modify a universal application steering shaft u joint to work.
https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1
Woohoo - it just keeps getting better and better.
#38
Drifting
Thread Starter
It's really easy to set up once the drivetrain is out of the car. Just use the trans/TT assembly as a jig to make sure it doesn't hit anything.
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Sam Handwich (04-09-2018)
#39
Supporting Vendor
Great write up. I like what you did with the u joint, I'd imagine it's leaps and bounds better. I thought about making this universal available for sale but you would have to drop the gearbox to replace it. I'm contemplating a whole replacement shaft but I don't know if there would be enough market for it to make it worth doing.
This is the universal I got for the project, samo samo.
great posts, thanks for the great pics !
This is the universal I got for the project, samo samo.
great posts, thanks for the great pics !
__________________
TMODCUSTOMS Specialty CNC Products
C5, C6 & C7
Performance Shifter Boxes
Upgraded Shifter Options
Zero-Slop Shifter Linkages
Don't replace your clutch without upgrading your linkage!
www.TMODCUSTOMS.com
info@tmodcustoms.com
TMODCUSTOMS Specialty CNC Products
C5, C6 & C7
Performance Shifter Boxes
Upgraded Shifter Options
Zero-Slop Shifter Linkages
Don't replace your clutch without upgrading your linkage!
www.TMODCUSTOMS.com
info@tmodcustoms.com
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Sam Handwich (04-10-2018)
#40
5th Gear
Universal coupler
What a creative idea, this will be helpful to many! I have one question on the universal joint, where it attaches on the shifter linkage coming out of the transmission, Did you weld the universal joint directly to the shifter linkage or did you use some sort of a set screw pin through a collar that’s welded on to the universal joint? In the one picture it looks like a set screw in a collar, slid over the shifter linkage coming from the transmission.