The first year of the solid rod at the carburetor was 1974. The following information is from the 74 thru 76 factory service manuals.
Perform transmission throttle rod adjustment while engine is at normal operating temperature otherwise make sure carburetor is not on fast idle cam by disconnecting choke.
Raise vehicle on hoist to make adjustment at transmission throttle lever.
Loosen adjustment swivel lock screw.
To insure proper adjustment, swivel must be free to slide along flat end of transmission throttle rod so that preload spring action is not restricted. Disassemble and clean or repair parts to assure free action, if necessary.
Hold transmission lever firmly forward against its internal stop and tighten swivel lock screw to 125 inch pounds.
The adjustment is finished and linkage backlash was automatically removed by the preload spring.
