Although not reproduced by the aftermarket - here's a few pics of a 1975-79 GM X-Car manual tranny bellcrank - keep in mind that the bellcrank assembly differs from 1968-74 X-cars.
In the first pic to the left - the bellcrank assembly has a 'jagged tube' - this feature is not present on 1968-74 bellcranks (including the ones used for 67-69 F-cars). This design was used with 1970-81 F-cars (Camaro/Firebirds); after searching an eBay auction for a second generation F-car bellcrank - the F-car bellcrank does not interchange with a 75-79 X-car due to the following:
Upper bellcrank arm is straight on a 70-81 F-car; 75-79 X-car has a curve as seen in the pics shown above. The lower bellcrank arm which attaches the adjusting stud to the clutch throwout bearing arm is the same as the one seen in a 70-81 F-car.
1968-74 bellcranks will have straight tubing. Note that the frame bracket has a similar bolt spacing - slightly different from 68-74, and the bracket is not angled in the area around the ball stud mount.
1975-79 X-car manual tranny pedals
Locating an original piece is virtually impossible - one must use a hydraulic throwout bearing and slave cylinder in place of the OEM setup.
