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-   -   Auto to manual conversion (https://67-72chevytrucks.com/vboard/showthread.php?t=841399)

MySons68C20 01-18-2023 05:07 PM

Auto to manual conversion
 
I want to convert my C20 auto to a 4 speed manual....need the clutch pedal, cross shaft, rod etc.

biketopia 01-19-2023 09:38 AM

Re: Auto to manual conversion
 
I have a whole peddle bracket assembly for a manual truck, I'm on the east coast so I'm not sure if it's worth it to ship. But let me know and I can get pics and prices.

MySons68C20 01-19-2023 12:44 PM

Re: Auto to manual conversion
 
That would be great if you don't mind.
Thank you!

Blake

biketopia 01-19-2023 02:08 PM

Re: Auto to manual conversion
 
4 Attachment(s)
Are you interested in shipping the whole set up, or just pieces? Both pedals pivot correctly

MySons68C20 01-19-2023 03:10 PM

Re: Auto to manual conversion
 
I can't tell if I can bolt the clutch pedal, spring mount etc to my current automatic bracket or not?

biketopia 01-19-2023 05:16 PM

Re: Auto to manual conversion
 
I have my auto cab at work. I'll take this out to it tomorrow when I'm back at the shop and compare & contrast the two. Units someone else knows

MySons68C20 01-19-2023 06:27 PM

Re: Auto to manual conversion
 
I'm trying to figure all this out before pulling the trigger.
Thank you!

biketopia 01-20-2023 03:28 PM

Re: Auto to manual conversion
 
1 Attachment(s)
Yup, looks like the upper mount spring hole is not there on the auto pedals.

MySons68C20 01-20-2023 06:11 PM

Re: Auto to manual conversion
 
So I contacted Modern Drivelines https://www.moderndriveline.com/gm/vehicle-specific/
and they can provide a one stop solution EXCEPT the pedal to the firewall.
It is a hydraulic solution eliminating most of the the mechanical linkage.
If someone has a work around without having to change out the bulkhead (don't know what it's called) that would be appreciated.
Thanks bike for helping me on this!

MySons68C20 01-21-2023 04:17 PM

Re: Auto to manual conversion
 
So referencing the link below it says I can just add on.....
I'm kind of lost right now on best way to proceed?

http://67-72chevytrucks.com/vboard/s...g+clutch+pedal

MySons68C20 01-23-2023 05:33 PM

Re: Auto to manual conversion
 
Silver Sport Transmissions has a clutch pedal they claim bolts up to the stock auto pedal box without having to remove. https://www.summitracing.com/parts/IST-PAG-01001A
I am going to the hydraulic master / slave deal since the all mechanical is so tough to find.
Thank you biketopia for putting up my pms and indecision!

Blake

biketopia 01-23-2023 10:04 PM

Re: Auto to manual conversion
 
Quote:

Originally Posted by MySons68C20 (Post 9170477)
Silver Sport Transmissions has a clutch pedal they claim bolts up to the stock auto pedal box without having to remove. https://www.summitracing.com/parts/IST-PAG-01001A
I am going to the hydraulic master / slave deal since the all mechanical is so tough to find.
Thank you biketopia for putting up my pms and indecision!

Blake

No worries & glad you got something figured out. You'll be real happy with the hydraulic conversion

MySons68C20 01-27-2023 12:13 PM

Re: Auto to manual conversion
 
Pulled the trigger on the Tremec TKX 5 speed kit with all the goodies.
It's supposed to arrive here end of next week.
I'll start a new thread once I do the install.
https://shiftsst.com/blog/post/c-series-67-72.html

hewittca 01-27-2023 02:00 PM

Re: Auto to manual conversion
 
2 Attachment(s)
Quote:

Originally Posted by MySons68C20 (Post 9171929)
Pulled the trigger on the Tremec TKX 5 speed kit with all the goodies.
It's supposed to arrive here end of next week.
I'll start a new thread once I do the install.
https://shiftsst.com/blog/post/c-series-67-72.html

I would definitely be interested in seeing how the install goes. I am currently swapping my truck from 3 on the tree to a 5 speed with a hydraulic clutch. I had to fab up a plate and pushrod to work with my stock clutch pedal. I had no reference measurements, so I based positioning on how much clutch pedal travel I wanted. I have no idea yet what the pedal will feel like.

MySons68C20 01-28-2023 03:22 AM

Re: Auto to manual conversion
 
[QUOTE=hewittca;9171960]I would definitely be interested in seeing how the install goes. I am currently swapping my truck from 3 on the tree to a 5 speed with a hydraulic clutch. You I had to fab up a plate and pushrod to work with my stock clutch pedal. I had no reference measurements, so I based positioning on how much clutch pedal travel I wanted. I have no idea yet what the pedal will feel like.[/QUOTE

Nice job on the plate! Your rod and master cylinder position is quite a bit higher than the SST stuff. There's more than one way to skin a cat!

hewittca 01-28-2023 09:53 AM

Re: Auto to manual conversion
 
[quote=MySons68C20;9172176]
Quote:

Originally Posted by hewittca (Post 9171960)
I would definitely be interested in seeing how the install goes. I am currently swapping my truck from 3 on the tree to a 5 speed with a hydraulic clutch. You I had to fab up a plate and pushrod to work with my stock clutch pedal. I had no reference measurements, so I based positioning on how much clutch pedal travel I wanted. I have no idea yet what the pedal will feel like.[/QUOTE

Nice job on the plate! Your rod and master cylinder position is quite a bit higher than the SST stuff. There's more than one way to skin a cat!

That's one thing I am worried about with my setup. I really had no idea where I should put the master vertically. I just sat in the truck and pushed the pedal and figured out how much pedal travel I wanted, then put the rod where I would get the correct master cylinder travel for the given pedal travel I wanted. I hope it doesn't end up too stiff. We shall see!

MySons68C20 01-31-2023 01:37 PM

Re: Auto to manual conversion
 
[quote=hewittca;9172211]
Quote:

Originally Posted by MySons68C20 (Post 9172176)

That's one thing I am worried about with my setup. I really had no idea where I should put the master vertically. I just sat in the truck and pushed the pedal and figured out how much pedal travel I wanted, then put the rod where I would get the correct master cylinder travel for the given pedal travel I wanted. I hope it doesn't end up too stiff. We shall see!

I think you are going to be fine.
SST says their deal is 20% less effort than the stock mechanical linkage.
Even if it's the same as the stock setup that's a win!
Please update once you get there.


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