I don't believe there are different cables. But there are literally dozens of different brackets that GM used on the different carburetor configurations offered by the different brands.
It's possible yours may be missing a piece or has been modified.
Is your truck a V8 or I6?
A 2 or 4 barrel carburetor?
This thread may help.
https://67-72chevytrucks.com/vboard/...d.php?t=807083
__________________
Thanks to Bob and Jeanie and everyone else at Superior Performance for all their great help.
RIP Bob Parks.
1967 Burban (the WMB),1988 S10 Blazer (the Stink10 II),1969 GTO (the Goat), 1970 Javelin, 1952 F2 Ford OHC six 4X4, 29 Model A, 72 Firebird (the DBP Bird). 85 Alfa Romeo
If it breaks I didn't want it in the first place
The WMB repair thread
http://67-72chevytrucks.com/vboard/s...d.php?t=698377