Internal and External Shift Linkage
Internal and External Shift Linkage
Refer to Fig. 36.
Removal
1. Raise the vehicle on a hoist so that the transmission oil pan is accessible.
2. Apply penetrating oil to the outer throttle lever attaching nut to prevent breaking the inner throttle lever.
3. Grasp the outer throttle lever and hold firmly. Then remove the outer throttle lever attaching nut and lockwasher. Swing lever and TV rod assembly or cable assembly clear for access path.
Fig. 7
Special Tools
4. Carefully disconnect the shift rod at the transmission manual lever using special service Tool T67P-7341-A, T84P-7341-A or equivalent.
5. Place a drain pan under the transmission oil pan. Starting at the rear of the pan and working toward the front, loosen the attaching bolts and allow the fluid to drain. Remove all of the attaching bolts except two at the rear to allow the fluid to further drain. It is necessary to use a 1/4 inch drive with a 1Omm universal socket for access to remove the oil pan bolts. After all the fluid has drained, remove the two remaining bolts and the fluid pan. If the same fluid is to be used again, filter the fluid through a 100 mesh screen. Reuse the fluid only if it is in good condition.
6. Remove transmission oil filter and gasket.
7. Remove the manual lever detent spring and roller assembly.
8. Remove manual lever retaining pin using a narrow sharp screwdriver-this must be done carefully.
9. Note assembled position of the TV lever torsion spring, then remove the spring.
10. Slide a 5/8 inch box end wrench over the inner manual lever close to the bottom of the lever. Do not allow the wrench to contact the rooster comb area. Using a 21mm wrench (some 13/18 inch wrenches secure the nut better), remove the manual lever attaching nut. Securely hold the inner manual lever with the box end wrench while applying break torque to the manual lever attaching nut.
NOTE: Note the orientation of the outer manual lever (pointing up or down) before removal.
11. Remove the outer manual lever from the case (Fig. 37).
12. Remove the inner throttle lever and shaft assembly.
13. Remove the inner manual lever and park pawl actuating rod assembly.
14. Disconnect the park pawl actuating rod from the inner manual lever.
15. Remove the manual lever oil seal with a screwdriver, or seal remover Tool T58L-101-A and slide hammer Tool T5OT-100-A or equivalent (Fig. 38). Discard the oil seal.
Installation
1. Install a new manual lever seal into the case using seal replacer Tool T74P-77498-A or equivalent (Fig. 39).
2. Check the manual lever, the shaft and the threads for damage.
3. With the manual lever attaching nut on the inner throttle lever and shaft assembly, slide the inner throttle lever through the inner manual lever.
4. Slide the outer manual lever in the case. Make sure the lever is oriented in the proper position (either up or down depending on vehicle application).
5. Allow the inner throttle lever and shaft assembly to slide through the ID bore of the outer manual lever.
6. Snug the manual lever attaching nut against the inner manual lever making sure the flats are properly aligned. Tighten the nut to remove free play, and torque the nut to specification with a crows foot or box type adapter to a torque wrench. The torque can be approximated by tightening the nut to remove free play, then turning the nut an additional 30 degrees. This is equivalent to rotating one point of the nut 1/4 inch.
7. Position TV lever torsion spring on the inner throttle valve shaft and align in notch.
8. Push manual lever all the way into the case. Make sure inner manual lever pin is engaged in manual valve detent slot and inner throttle lever is acting on the TV valve. Neutral start switch plunger must also be riding on cam surface of inner manual lever.
9. Install new manual lever retaining pin in case (light press fit). Pin must be flush to slightly below pan gasket surface.
10. Install the new throttle lever seal in the outer manual lever counterbore with a 13mm thin wall socket, using the end that the ratchet drive would be inserted into, to seat the seal. Install.030 inch to .060 inch below the surface.
NOTE: Identification numbers on the seal must face outward.
11. Install detent spring. Make sure detent spring roller is centered on rooster comb. Tighten to 9-14 N.m (80-120 in-lbs).
12. Install the throttle valve outer lever (do not push inner throttle valve lever past throttle valve).
13. Install throttle lever lockwasher and attaching nut. Tighten nut to 16-22 N.m (12-16 ft-lbs).
14. Check park function and operation of TV lever and manual lever before further assembly.
15. Connect the shift linkage rod to the manual lever using special service Tool T67P-7341-A, T84P-7341-B or equivalent. Make sure the manual lever is in the same position as adjustment is necessary. Adjustments
16. Install a new oil filter gasket and oil filter. Tighten to 9-14 N.m (80-120 in-lbs).
17. Clean the transmission oil pan and gasket surfaces thoroughly.
18. Reassemble oil pan with a new pan gasket. Tighten bolts to 8.0-13.5 N.m (6-10 ft-lbs). It is necessary to use a 1/4 inch drive with a 1Omm universal socket to reinstall the oil pan bolts.
19. Lower vehicle and add three quarts of oil.
20. Check and adjust the TV linkage at the carburetor. Adjustments
21. Start vehicle in park, and with foot on brake, cycle gear selector several times. Recheck fluid level and add as required. Check for leaks. Fluid - A/T